USFS National Forest System Trails · Montana · Updated June 2026
Custer Gallatin National Forest Mountain Bike Trails
Custer Gallatin National Forest earns a Bike Access Grade of A: 98% of its rideable trail miles are open to mountain bikes, with Class-1 e-bike access on part of the network. Excellent — most rideable trail miles are open to mountain bikes, with Class-1 e-bike access too.
Custer Gallatin National Forest carries 3,609 mi of mapped National Forest System trail, of which 2,209 mi across 552 segments is designated for mountain bikes, typically open Year-round. Class 1 e-bikes are designated on 381 segments (1,378 mi).
What the USFS data shows for Custer Gallatin National Forest
Of the 3,609 mi of mapped trail in Custer Gallatin National Forest, 61% — 2,209 mi across 552 bike-designated segments — is open to mountain bikes in USFS travel-management data.
Tread is overwhelmingly native dirt: USFS lists native material on 1,994 of 2,061 surfaced segments (97%).
On the USFS difficulty rating, advanced is the most common designation here — 1,492 of 1,869 rated segments (80%) — across all uses, not bikes alone.
USFS records a year-round bike season for this forest, though 3 different season windows still appear on individual segments at higher elevation.
The longest single named bike segment in the data is Boone Peak at 23.29 mi on native dirt, rated advanced by USFS and open Year-round.
Class 1 e-bikes are designated on 381 segments (1,378 mi), and 5 segments carry an ADA-accessibility flag in the same dataset.
Trail surface
- Native Material1,994
- Snow37
- Asphalt13
- Imported Compacted Material13
- Crushed Aggregate Or Gravel3
USFS trail class (1 = primitive · 5 = developed)
- Class 3876
- Class 2809
- Class 4329
- Class 128
- Class 528
61% of this forest's mapped trail is bike-designated. Note: USFS records trail grade (steepness), not technical MTB difficulty — we surface grade where present but do not infer a black/blue/green rating from it.
Largest bike-designated trails
| Trail | Miles | Surface | Trail class | Bike season |
|---|---|---|---|---|
| Boone Peak | 23.29 | Native Material | — | Year-round |
| Bangtail Divide | 22.71 | Native Material | — | Year-round |
| West Fork Stillwater | 22.17 | Native Material | — | Year-round |
| Skyline | 20.82 | Native Material | — | Year-round |
| Bridger Foothills | 20.55 | Native Material | — | Year-round |
| Lightning Creek | 19.88 | Native Material | — | Year-round |
| Cinnamon Buck | 19.36 | Native Material | — | Year-round |
| Red Cub | 18.72 | Native Material | — | Year-round |
| Buck Ridge | 17.93 | Native Material | — | Year-round |
| Wicked Creek | 17.19 | Native Material | — | Year-round |
| Cherry Creek | 16.9 | Native Material | — | Year-round |
| Slough Creek | 16.58 | Native Material | — | May–Oct |
| West Fork Rock Creek | 16.5 | Native Material | — | Year-round |
| Bridger Ridge | 16.42 | Native Material | — | Year-round |
| Porcupine Ibex | 16.25 | Native Material | — | Year-round |
| Hellroaring Plateau | 16.15 | Native Material | — | Year-round |
| Buck Ridge (Snowmo) | 16 | Native Material | — | — |
| Phantom Creek | 15.21 | Native Material | — | Year-round |
| Tucker Creek | 14.91 | Native Material | — | May–Oct |
| King Creek | 14.88 | Native Material | — | Year-round |
| Inspiration Divide | 14.87 | Native Material | — | Year-round |
| Bear Canyon | 14.53 | Native Material | — | Year-round |
| Red Lodge Creek | 14.45 | Native Material | — | Year-round |
| Bear Basin | 14.19 | Native Material | — | Year-round |
| Upsidedown Creek | 13.91 | Native Material | — | May–Oct |
Every trail in Custer Gallatin National Forest
All 495 ridable trails in this forest — every trail where USFS data designates mountain-bike or Class 1 e-bike use, grouped by grade-based steepness. Grade reflects slope, not technical difficulty. Each trail links to its full data profile.
Easy grade (31)
Gentle grade band (shallow average slope).
- Summit Divide10.6 mi · bike + e-bike
Native Material · class 1
- First Yellow Mule7.1 mi · bike
Native Material · class 3
- Dead Horse Divide5.4 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Devils Canyon5.4 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Horse Creek5.1 mi · bike + e-bike
Native Material · class 2
- Iron Spring5 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Lampkin Gulch5 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Pot Hole4.5 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Roberts Creek4.5 mi · bike + e-bike
Native Material · class 2
- 315033.4 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Peterson Canyon3.3 mi · bike + e-bike
Native Material · class 1
- Hoag Coal Mine Draw2.9 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Sheep Creek Basin2.7 mi · bike
Native Material · class 2
- Deadhorse2.7 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Boundary Reservoir2.6 mi · bike + e-bike
Native Material · class 2
- 3150102.5 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- 311332.5 mi · bike + e-bike
Native Material · class 1
- Johnny Pocket Spring2.5 mi · bike + e-bike
Native Material · class 1
- South Fork American Fork2.4 mi · bike
Native Material · class 2
- 315072.3 mi · bike + e-bike
Native Material · class 1
- Ten Fifteen Mile2.3 mi · bike + e-bike
Native Material · class 2
- 305112 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- 31503b2 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- 3111 Box Springs1.9 mi · bike + e-bike
Native Material · class 1
- Mcclary Road1.9 mi · bike + e-bike
Native Material · class 1 · Jan–Oct, December
- Lower Lake Fork1.7 mi · bike
Native Material · class 3
- Ana Spring1.6 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Halbert Gulch Crossover1.5 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Ward Gulch1.3 mi · bike + e-bike
Native Material · class 1
- 316021.3 mi · bike + e-bike
Native Material · class 1
- 315040.6 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
Intermediate grade (166)
Moderate grade band.
- King Creek14.9 mi · bike + e-bike
Native Material · class 2
- Pumpkin-Otter Divide11.9 mi · bike + e-bike
Native Material · class 2
- Bridge Canyon10.1 mi · bike + e-bike
Native Material · class 2
- Yellowstone Shortline8.9 mi · bike
Asphalt · class 5
- Paget Creek8.9 mi · bike + e-bike
Native Material · class 2
- Shootout Park8.8 mi · bike
Native Material · class 4
- South Ash Creek8.2 mi · bike + e-bike
Native Material · class 2
- Indian Taylor Cr Divide7.9 mi · bike + e-bike
Native Material · class 2
- 413387.6 mi · Class 1 e-bike
Native Material · class 2
- Horse Creek Butte7.2 mi · bike + e-bike
Native Material · class 2
- N.Fk.Bloom Creek6.9 mi · bike + e-bike
Native Material · class 2
- Yager6.5 mi · bike + e-bike
Native Material · class 2
- Schoolhouse Draw6.4 mi · bike + e-bike
Native Material · class 2
- Cub Creek6.2 mi · bike + e-bike
Native Material · class 2
- Lyon Creek6.1 mi · bike + e-bike
Native Material · class 2
- 413346 mi · bike + e-bike
Native Material · class 2
- Taylor-15mile Creek5.8 mi · bike + e-bike
Native Material · class 2
- South Plum Creek5.7 mi · bike + e-bike
Native Material · class 2
- Poker Jim N Fork Lee5.6 mi · bike + e-bike
Native Material · class 2
- Beattie Gulch5.6 mi · bike
Native Material · class 3
- Brewster Divide5.4 mi · bike + e-bike
Native Material · class 2
- 4432k5.4 mi · bike + e-bike
Native Material · class 2
- O'Dell Divide5.2 mi · bike + e-bike
Native Material · class 2
- Stag Rock5.1 mi · bike + e-bike
Native Material · class 2
- Ash Creek5 mi · bike + e-bike
Native Material · class 2
- Wickham Gulch5 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- 409524.9 mi · bike + e-bike
Native Material · class 2
- Plum Cr4.9 mi · bike + e-bike
Native Material · class 2
- 479514.6 mi · bike + e-bike
Native Material · class 2
- Liscom Butte West4.6 mi · bike + e-bike
Native Material · class 2
- 409454.4 mi · bike + e-bike
Native Material · class 2
- Maverick Cr4.3 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- Lower Plum Cr4.3 mi · bike + e-bike
Native Material · class 2
- 477924.3 mi · bike + e-bike
Native Material · class 2
- Mason Prong4.2 mi · bike + e-bike
Native Material · class 2
- Coal Cr3.8 mi · bike + e-bike
Native Material · class 2
- 477043.8 mi · Class 1 e-bike
Native Material · class 2
- Wild Hog Butte3.8 mi · bike + e-bike
Native Material · class 2
- Middle Plum Cr3.8 mi · bike + e-bike
Native Material · class 2
- Taylor Divide3.6 mi · bike + e-bike
Native Material · class 2
- Tooley Divide3.5 mi · bike + e-bike
Native Material · class 2
- 413363.5 mi · bike + e-bike
Native Material · class 2
- 479213.4 mi · bike + e-bike
Native Material · class 2
- 479823.2 mi · bike + e-bike
Native Material · class 2
- Cook Creek3.2 mi · bike + e-bike
Native Material · class 2
- N.Fork Taylor Creek3.2 mi · bike + e-bike
Native Material · class 2
- 478533.1 mi · bike + e-bike
Native Material · class 2
- Newell Creek3 mi · bike + e-bike
Native Material · class 2
- 479323 mi · bike + e-bike
Native Material · class 2
- 450213 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- 479423 mi · bike + e-bike
Native Material · class 2
- Coffin Lakes2.9 mi · bike
Native Material · class 3
- Brian Creek2.9 mi · bike + e-bike
Native Material · class 2
- Coalmine Proj Rd2.8 mi · bike + e-bike
Native Material · class 2
- 4094102.8 mi · bike + e-bike
Native Material · class 2
- 480582.6 mi · Class 1 e-bike
Native Material · class 2
- 443712.6 mi · bike + e-bike
Native Material · class 2
- 440942.6 mi · Class 1 e-bike
Native Material · class 2
- 47992.5 mi · bike + e-bike
Native Material · class 2
- 444012.5 mi · bike + e-bike
Native Material · class 2
- 421252.5 mi · bike + e-bike
Native Material · class 2
- Bell Tower Divide2.5 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- South Fork Bozeman Creek2.5 mi · bike
Native Material · class 4
- 478462.4 mi · bike + e-bike
Native Material · class 2
- Fly Creek2.4 mi · bike + e-bike
Native Material · class 2
- Griffin Pass2.4 mi · bike + e-bike
Native Material · class 2
- 4094122.3 mi · bike + e-bike
Native Material · class 2
- 478572.3 mi · bike + e-bike
Native Material · class 2
- Flathers2.3 mi · bike + e-bike
Native Material · class 2 · Jan–Oct, December
- 4776b2.3 mi · bike + e-bike
Native Material · class 2
- 4785612.3 mi · bike + e-bike
Native Material · class 2
- Logging Creek2.2 mi · bike + e-bike
Native Material · class 2
- Lemonade Road2.2 mi · bike + e-bike
Native Material · class 2
- Three & Ten Mile Divide2.1 mi · bike + e-bike
Native Material · class 2
- 478652.1 mi · bike + e-bike
Native Material · class 2
- 4432i2.1 mi · bike + e-bike
Native Material · class 2
- 479542.1 mi · bike + e-bike
Native Material · class 2
- 441912.1 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- 476962.1 mi · bike + e-bike
Native Material · class 2
- Daily Creek2 mi · bike + e-bike
Native Material · class 2
- Cabin Creek2 mi · bike + e-bike
Native Material · class 2
- 402322 mi · bike + e-bike
Native Material · class 2
- 480122 mi · bike + e-bike
Native Material · class 2
- 443111.9 mi · bike + e-bike
Native Material · class 2
- 478541.9 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- 446011.9 mi · bike + e-bike
Native Material · class 2
- 4094111.8 mi · bike + e-bike
Native Material · class 2
- Crevice Creek1.8 mi · bike
Native Material · class 3
- Bridge Creek1.8 mi · bike + e-bike
Native Material · class 2
- 4432d1.8 mi · bike + e-bike
Native Material · class 2
- 450141.8 mi · bike + e-bike
Native Material · class 2
- Doonan Draw1.8 mi · bike + e-bike
Native Material · class 2
- 451611.8 mi · bike + e-bike
Native Material · class 2
- 412771.8 mi · bike + e-bike
Native Material · class 2
- 400121.8 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- 476711.8 mi · bike + e-bike
Native Material · class 2
- 450151.8 mi · bike + e-bike
Native Material · class 2
- 409471.7 mi · bike + e-bike
Native Material · class 2
- 478411.7 mi · bike + e-bike
Native Material · class 2
- 470321.6 mi · bike + e-bike
Native Material · class 2
- 4776d1.6 mi · bike + e-bike
Native Material · class 2
- Brown Cow1.6 mi · bike + e-bike
Native Material · class 2
- 470351.6 mi · bike + e-bike
Native Material · class 2
- Ibex1.5 mi · bike + e-bike
Native Material · class 3
- Fort Howes Comm Site1.5 mi · bike + e-bike
Native Material · class 2
- 477211.5 mi · bike + e-bike
Native Material · class 2
- 4779221.5 mi · bike + e-bike
Native Material · class 2
- Ridge Road1.5 mi · bike + e-bike
Native Material · class 2
- 409271.5 mi · bike + e-bike
Native Material · class 2
- 479531.5 mi · bike + e-bike
Native Material · class 2
- 443231.5 mi · bike + e-bike
Native Material · class 2
- 478611.4 mi · bike + e-bike
Native Material · class 2
- 4436b1.4 mi · bike + e-bike
Native Material · class 2
- 478331.4 mi · bike + e-bike
Native Material · class 2
- 441121.3 mi · bike + e-bike
Native Material · class 2
- 478321.3 mi · bike + e-bike
Native Material · class 2
- Wolverine Pass Cutoff1.2 mi · bike
Native Material · class 2
- 413331.2 mi · bike + e-bike
Native Material · class 2
- 477821.2 mi · bike + e-bike
Native Material · class 2
- 44372a1.2 mi · bike + e-bike
Native Material · class 2
- 4703311.2 mi · bike + e-bike
Native Material · class 2
- 4432f1.2 mi · bike + e-bike
Native Material · class 2
- 479721.2 mi · bike + e-bike
Native Material · class 2
- 445021.2 mi · bike + e-bike
Native Material · class 2
- Jackson Divide1.1 mi · bike + e-bike
Native Material · class 4
- Wilbur Creek1.1 mi · bike + e-bike
Native Material · class 2
- 479021.1 mi · bike + e-bike
Native Material · class 2
- 478421 mi · bike + e-bike
Native Material · class 2
- 4432c1 mi · bike + e-bike
Native Material · class 2
- 480141 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- Liscom Butte Lookout1 mi · bike + e-bike
Native Material · class 2
- 443511 mi · bike + e-bike
Native Material · class 2
- 478561 mi · bike + e-bike
Native Material · class 2
- 443221 mi · bike + e-bike
Native Material · class 2
- South Fork Poker Jim0.9 mi · bike + e-bike
Native Material · class 2
- Drop Tube0.9 mi · bike + e-bike
Native Material · class 2
- 477810.9 mi · bike + e-bike
Native Material · class 2
- 409550.9 mi · bike + e-bike
Native Material · class 2
- 478520.8 mi · bike + e-bike
Native Material · class 2
- 409290.8 mi · bike + e-bike
Native Material · class 2
- 450230.8 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- 480940.8 mi · bike + e-bike
Native Material · class 2
- 443740.8 mi · bike + e-bike
Native Material · class 2
- 4436a0.8 mi · bike + e-bike
Native Material · class 2
- Pond Road0.7 mi · bike + e-bike
Native Material · class 2
- 445010.7 mi · bike + e-bike
Native Material · class 2
- Upper South Fork0.7 mi · bike + e-bike
Native Material · class 2
- 409250.7 mi · bike + e-bike
Native Material · class 2
- 470330.7 mi · bike + e-bike
Native Material · class 2
- 478480.7 mi · bike + e-bike
Native Material · class 2
- 400110.7 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- 409440.6 mi · bike + e-bike
Native Material · class 2
- 4436d0.6 mi · bike + e-bike
Native Material · class 2
- 443720.6 mi · bike + e-bike
Native Material · class 2
- 470360.6 mi · bike + e-bike
Native Material · class 2
- 450220.6 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- 478550.6 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- 4432s0.6 mi · bike + e-bike
Native Material · class 2
- 45030.6 mi · bike + e-bike
Native Material · class 2
- 403220.6 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- 409530.6 mi · bike + e-bike
Native Material · class 2
- 441920.5 mi · bike + e-bike
Native Material · class 2 · Jan–Aug, December
- 409460.5 mi · bike + e-bike
Native Material · class 2
- 413190.5 mi · bike + e-bike
Native Material · class 2
- 442100.5 mi · bike + e-bike
Native Material · class 2
- 409430.5 mi · bike + e-bike
Native Material · class 2
Advanced grade (218)
Steep grade band.
- Boone Peak23.3 mi · bike + e-bike
Native Material · class 2
- Bangtail Divide22.7 mi · bike + e-bike
Native Material · class 3
- West Fork Stillwater22.2 mi · bike
Native Material · class 3
- Skyline20.8 mi · bike + e-bike
Native Material · class 3
- Bridger Foothills20.6 mi · bike + e-bike
Native Material · class 3
- Lightning Creek19.9 mi · bike
Native Material · class 3
- Cinnamon Buck19.4 mi · bike + e-bike
Native Material · class 3
- Red Cub18.7 mi · bike + e-bike
Native Material · class 3
- Buck Ridge17.9 mi · bike + e-bike
Native Material · class 4
- Cherry Creek16.9 mi · bike
Native Material · class 3
- Slough Creek16.6 mi · bike + e-bike
Native Material · class 3 · May–Oct
- West Fork Rock Creek16.5 mi · bike + e-bike
Native Material · class 3
- Bridger Ridge16.4 mi · bike + e-bike
Native Material · class 1
- Porcupine Ibex16.3 mi · bike + e-bike
Native Material · class 3
- Hellroaring Plateau16.2 mi · bike
Native Material · class 3
- Buck Ridge (Snowmo)16 mi · Class 1 e-bike
Native Material · class 4
- Phantom Creek15.2 mi · bike
Native Material · class 3
- Tucker Creek14.9 mi · bike
Native Material · class 3 · May–Oct
- Inspiration Divide14.9 mi · bike + e-bike
Native Material · class 2
- Bear Canyon14.5 mi · bike + e-bike
Native Material · class 4
- Red Lodge Creek14.5 mi · bike
Native Material · class 3
- Bear Basin14.2 mi · bike
Native Material · class 3
- Upsidedown Creek13.9 mi · bike
Native Material · class 3 · May–Oct
- Telephone Basin13.9 mi · bike
Native Material · class 3 · May–Oct
- East Fork Boulder13.8 mi · bike + e-bike
Native Material · class 3 · May–Oct
- Two Top Divide13.4 mi · bike
Native Material · class 3 · Jun–Dec
- Bridge Creek13.1 mi · bike
Native Material · class 3
- Eightmile13 mi · bike
Native Material · class 2
- Lower Deer Creek13 mi · bike + e-bike
Native Material · class 2
- East Fork Mill Creek12.9 mi · bike
Native Material · class 3
- South Cottonwood11.9 mi · bike
Native Material · class 2
- Basin Lakes11.8 mi · bike
Native Material · class 2
- Porcupine Creek11.8 mi · bike + e-bike
Native Material · class 3
- East Trunk11.3 mi · bike
Native Material · class 2
- Lost Wolverine11.2 mi · bike + e-bike
Native Material · class 3
- North Cottonwood11.1 mi · bike
Native Material · class 2
- Cabin Creek Divide11 mi · bike + e-bike
Native Material · class 2
- Anderson Ridge10.7 mi · bike
Native Material · class 2
- Ingles Creek10.7 mi · bike + e-bike
Native Material · class 3
- Lodgepole10.6 mi · bike + e-bike
Native Material · class 3
- Oil Well10.5 mi · bike + e-bike
Native Material · class 4
- Stockman Trail10.4 mi · bike + e-bike
Native Material · class 2
- Donahue10.3 mi · bike
Native Material · class 3
- Cedar Creek10.2 mi · bike
Native Material · class 3
- Swan Creek10.1 mi · bike + e-bike
Native Material · class 3
- Silver Run Plateau10.1 mi · bike
Native Material · class 3 · May–Oct
- Bozeman Creek10.1 mi · bike
Native Material · class 4
- West Fork Upper Deer Creek10 mi · bike + e-bike
Native Material · class 3
- North Fork Hellroaring10 mi · bike
Native Material · class 3 · May–Oct
- Palisades Trail9.7 mi · bike
Native Material · class 2
- Davis Creek9.7 mi · bike
Native Material · class 3 · May–Oct
- Green Mountain9.7 mi · bike
Native Material · class 3
- Honey Run9.6 mi · bike + e-bike
Native Material · class 3
- Fairy Creek9.4 mi · bike + e-bike
Native Material · class 4
- Graham Creek9.2 mi · bike + e-bike
Native Material · class 3
- Slip & Slide9.2 mi · bike
Native Material · class 2
- Cottonwood Lowline9.2 mi · bike
Native Material · class 2
- East Bridger South9.1 mi · bike
Native Material · class 4
- Derby Mountain9.1 mi · bike + e-bike
Native Material · class 2
- Spread Creek9 mi · bike + e-bike
Native Material · class 3
- North Fork Sixmile8.8 mi · bike
Native Material · class 2
- Eldridge8.8 mi · bike
Native Material · class 2
- Brundage Creek8.6 mi · bike
Native Material · class 2 · May–Dec
- Elephanthead8.5 mi · bike
Native Material · class 3
- Second Yellow Mule8.5 mi · bike
Native Material · class 4
- Rock Creek North8.5 mi · bike + e-bike
Native Material · class 3
- Elkhorn Ridge8.3 mi · bike
Native Material · class 2
- Red Pryor8.2 mi · bike + e-bike
Native Material · class 3
- Storm Castle Creek7.9 mi · bike + e-bike
Native Material · class 4
- Watkins Creek7.8 mi · bike
Native Material · class 3
- Horse Butte (Snowmo)7.8 mi · bike + e-bike
Native Material · class 2
- Shields Lowline7.8 mi · bike + e-bike
Native Material · class 2
- Parkside7.5 mi · bike
Native Material · class 1 · May–Oct
- Wallace Pass7.5 mi · bike
Native Material · class 3
- Lady Of The Lake7.5 mi · bike
Native Material · class 3
- Hidden Lake Divide7.5 mi · bike + e-bike
Native Material · class 3
- Porcupine Meadows7.5 mi · bike + e-bike
Native Material · class 3
- Hyalite Creek7.4 mi · bike + e-bike
Native Material · class 3
- Chestnut Mountain7.3 mi · bike
Native Material · class 3
- Lake Of The Pines7.3 mi · bike + e-bike
Native Material · class 3
- Lizard Lakes7.1 mi · bike + e-bike
Native Material · class 3
- North Dry Divide6.7 mi · bike
Native Material · class 3
- Kirkwood6.7 mi · bike + e-bike
Native Material · class 3
- Wicked Ridge6.6 mi · bike
Native Material · class 3
- Bishop Park6.6 mi · bike + e-bike
Native Material · class 4
- Corbly Gulch6.5 mi · bike + e-bike
Native Material · class 3
- Moose Creek6.5 mi · bike + e-bike
Native Material · class 2
- Horsethief Mountain6.4 mi · bike
Native Material · class 3
- Hatfield Mountain6.4 mi · bike
Native Material · class 3
- Wheeler Gulch6.3 mi · bike
Native Material · class 2
- Storm Castle Ridge6.3 mi · bike
Native Material · class 2
- Blackmore6.2 mi · bike
Native Material · class 3
- Trespass6.2 mi · bike
Native Material · class 3
- Lionhead6.2 mi · bike + e-bike
Native Material · class 4
- Upper Wildhorse Lick6 mi · bike + e-bike
Native Material · class 4
- Rat Lake5.9 mi · bike + e-bike
Native Material · class 4
- Marble Mountain5.8 mi · bike
Native Material · class 2
- Sheep Lake5.8 mi · bike
Native Material · class 3
- Mile Creek5.8 mi · bike
Native Material · class 3
- Ramshorn Lake5.8 mi · bike + e-bike
Native Material · class 3
- Placer Gulch5.8 mi · bike + e-bike
Native Material · class 4
- New World Gulch5.7 mi · bike
Native Material · class 3
- Shafthouse Hill5.7 mi · bike
Native Material · class 3
- Storm Castle Mtn5.7 mi · bike
Native Material · class 2
- Cutler Lake5.5 mi · bike
Native Material · class 3
- Livingston Peak5.5 mi · bike
Native Material · class 2
- Cabin Creek5.5 mi · bike
Native Material · class 3
- Mount Hebgen5.5 mi · bike
Native Material · class 3
- Tomato Can5.3 mi · bike + e-bike
Native Material · class 2
- West Pine5.3 mi · bike
Native Material · class 3
- Slide Creek5.3 mi · bike
Native Material · class 2
- Meadow Creek5.2 mi · bike + e-bike
Native Material · class 4
- Albino Lake5.2 mi · bike
Native Material · class 2
- Dead Indian5.1 mi · bike
Native Material · class 2
- History Rock5.1 mi · bike
Native Material · class 3
- Cottonwood Lake5.1 mi · bike + e-bike
Native Material · class 3
- Leverich Canyon5.1 mi · bike
Native Material · class 3
- George Lake5.1 mi · bike
Native Material · class 3
- Placer Creek5 mi · bike
Native Material · class 3
- Beehive Basin5 mi · bike
Native Material · class 3
- East Fork Hyalite4.9 mi · bike + e-bike
Native Material · class 3
- Little Wapiti4.6 mi · bike
Native Material · class 2
- Bostwick Canyon4.5 mi · bike
Native Material · class 2
- Telephone Ridge4.5 mi · bike + e-bike
Native Material · class 3
- Corral Creek4.4 mi · bike
Native Material · class 3
- North Swan Divide4.3 mi · bike + e-bike
Native Material · class 3
- Ski Hill4.3 mi · bike + e-bike
Native Material · class 4
- Big Pryor4.2 mi · bike
Native Material · class 2
- Pine Creek4.2 mi · bike
Native Material · class 3
- Shriver Peak Road4.1 mi · bike + e-bike
Native Material · class 2
- Mica Ridge4.1 mi · bike + e-bike
Native Material · class 4
- Sunlight Ridge4.1 mi · bike + e-bike
Native Material · class 2
- Little Trail Creek4 mi · bike
Native Material · class 2
- Line Creek Basin3.7 mi · bike
Native Material · class 3 · May–Oct
- King Trail3.6 mi · bike + e-bike
Native Material · class 2
- 2095a3.6 mi · bike + e-bike
Native Material · class 2
- Pioneer Lakes3.6 mi · bike + e-bike
Native Material · class 4
- West Fork Watkins3.6 mi · bike
Native Material · class 2
- Main Bear Creek3.5 mi · bike
Native Material · class 3
- Switchback3.5 mi · bike + e-bike
Native Material · class 2
- Mile Creek Face3.4 mi · bike
Native Material · class 3
- South Fork Shields3.2 mi · bike
Native Material · class 2
- Mystical Bear3.2 mi · bike
Native Material · class 3
- Sypes Canyon3.2 mi · bike
Native Material · class 3
- Suce Creek3.1 mi · bike
Native Material · class 3
- Pika Point3.1 mi · bike + e-bike
Native Material · class 3
- Garnet Mountain3.1 mi · bike
Native Material · class 3
- Middle Fork Upper Deer Creek3.1 mi · bike + e-bike
Native Material · class 2
- Westshore3 mi · bike
Native Material · class 4
- Bear Canyon3 mi · bike + e-bike
Native Material · class 2
- Moose Jaw3 mi · bike + e-bike
Native Material · class 4
- Felix Canyon3 mi · bike + e-bike
Native Material · class 4
- Hidden Lakes2.9 mi · bike + e-bike
Native Material · class 4
- North Fork Elk Creek2.9 mi · bike
Native Material · class 3
- North Fork Ridge2.8 mi · bike
Native Material · class 4
- Blow Out2.8 mi · bike
Native Material · class 2
- Inferno Canyon2.8 mi · bike + e-bike
Native Material · class 2
- Mystic Lake2.8 mi · bike
Native Material · class 2
- Truman Gulch2.7 mi · bike + e-bike
Native Material · class 3
- Graham Trail2.7 mi · bike + e-bike
Native Material · class 2
- Smeller Lake2.7 mi · bike
Native Material · class 3
- South Fork Sixteenmile2.6 mi · bike
Native Material · class 2
- Lime Creek2.6 mi · bike + e-bike
Native Material · class 4
- Raptor View2.6 mi · bike
Native Material · class 3
- Jims Gulch2.6 mi · bike
Native Material · class 3
- Gallatin Riverside2.5 mi · bike
Native Material · class 3
- Langohr Divide2.5 mi · bike
Native Material · class 2
- Bear Canyon Ridge2.5 mi · bike + e-bike
Native Material · class 2
- Black Butte View2.4 mi · bike + e-bike
Native Material · class 4
- Palmer Creek2.4 mi · bike
Native Material · class 3
- Nichols Connector2.4 mi · bike
Unknown · class 3 · May–Oct
- Ross Pass2.4 mi · bike + e-bike
Native Material · class 3
- Blacktail Lake2.3 mi · bike
Native Material · class 3
- Moonshine2.3 mi · bike
Native Material · class 2
- Miller Trail2.2 mi · bike + e-bike
Native Material · class 2
- North Line Creek2.1 mi · bike
Native Material · class 3 · May–Oct
- Woody Creek2.1 mi · bike
Native Material · class 3
- Golden Trout Lakes2.1 mi · bike + e-bike
Native Material · class 3
- Whits Lake2.1 mi · bike
Native Material · class 3
- Trail Creek2.1 mi · bike
Native Material · class 3
- Sphinx Creek2.1 mi · bike
Native Material · class 3
- Horse Creek Tie2.1 mi · bike + e-bike
Native Material · class 2
- Swamp Lake2 mi · bike
Native Material · class 2
- Hood Creek2 mi · bike + e-bike
Native Material · class 3
- Lower Tepee1.8 mi · bike
Native Material · class 2
- Eglise Rock Overlook1.7 mi · bike + e-bike
Native Material · class 4
- Scab Rock1.7 mi · bike + e-bike
Native Material · class 4
- Twin Cabin1.7 mi · bike
Native Material · class 3
- Fisher Wagon Route1.7 mi · bike
Native Material · class 3
- Emigrant Creek1.6 mi · bike
Native Material · class 2
- South Fork Brackett Creek1.6 mi · bike
Native Material · class 3
- Jones Creek1.6 mi · bike
Native Material · class 2
- Hidden Lake Cutoff1.6 mi · bike + e-bike
Native Material · class 3
- Highland1.6 mi · bike
Native Material · class 2
- Sweden Creek1.5 mi · bike
Native Material · class 3
- First Creek Cutoff1.4 mi · bike
Native Material · class 2
- Crescent Lake1.3 mi · bike
Native Material · class 3
- Buck Ridge Spur 11.3 mi · bike + e-bike
Native Material · class 4
- Miller Gulch1.3 mi · bike
Native Material · class 2
- Rankin Homestead1.2 mi · bike
Native Material · class 3
- Old Tepee1.2 mi · bike
Native Material · class 2
- North Fork Tie1.2 mi · bike
Native Material · class 4
- Dutchman Basin1.2 mi · bike
Native Material · class 2
- Middle Cottonwood1.2 mi · bike + e-bike
Native Material · class 4
- Cinnamon Lookout1.2 mi · bike
Native Material · class 2
- Red Pryor Ice1.1 mi · bike + e-bike
Native Material · class 2
- Wepler1.1 mi · bike + e-bike
Native Material · class 3
- Maiden Falls1 mi · bike
Native Material · class 2
- South Fork Swan1 mi · bike + e-bike
Native Material · class 3
- Mystic Lake Cutoff0.8 mi · bike
Native Material · class 3
- Bad Canyon0.8 mi · bike
Native Material · class 3
- Tepee Basin0.8 mi · bike
Native Material · class 2
- Sheep Rock0.8 mi · bike
Native Material · class 4
- Quaw Creek0.8 mi · bike
Native Material · class 2
- Lower Scab Rock0.7 mi · bike + e-bike
Native Material · class 4
- Mica Mine0.6 mi · bike + e-bike
Native Material · class 3
- 201820.5 mi · bike + e-bike
Native Material · class 2
- George Lake Tie0.5 mi · bike
Native Material · class 2
Grade not recorded (80)
No grade band recorded in the USFS data.
- Wicked Creek17.2 mi · bike + e-bike
Native Material · class 4
- Jackson Creek10.8 mi · bike + e-bike
Native Material · class 4
- Lionhead Mtn C D N S T9.4 mi · bike
Native Material · class 3
- Madison Cream Divide7.9 mi · bike + e-bike
Native Material · class 4
- Bangtail Creek7.8 mi · bike + e-bike
Native Material · class 4
- Wilson Creek7.6 mi · bike + e-bike
Native Material · class 4
- Blacktail Basin7.5 mi · bike + e-bike
Native Material · class 2
- Willow Creek North6.6 mi · bike + e-bike
Native Material · class 4
- Bitter Creek6.2 mi · bike + e-bike
Native Material · class 4
- South Fork Flathead Creek6 mi · bike + e-bike
Native Material · class 4
- Hyalite Canyon5.8 mi · bike
Native Material · class 4
- West Madison Plateau5.6 mi · bike + e-bike
Native Material · class 4
- Carrol Creek5.1 mi · bike + e-bike
Native Material · class 4
- East Bridger North4.7 mi · bike
Native Material · class 3
- Moser Lick4.6 mi · bike + e-bike
Native Material · class 4
- West Lodgepole4.6 mi · bike + e-bike
Native Material · class 4
- Lower Wildhorse Lick4.5 mi · bike + e-bike
Native Material · class 3
- Rendezvous4.4 mi · bike
Native Material · class 4 · Jun–Oct
- Diaper Line4.3 mi · bike
Native Material · class 4
- Wheeler Mountain4.2 mi · Class 1 e-bike
Native Material · class 4
- Frontier Trail4.1 mi · bike
Native Material · class 4
- Windy Ridge4 mi · bike
Native Material · class 4 · Jun–Oct
- Tie Cutter Gulch3.9 mi · bike + e-bike
Native Material · class 4
- Lower Big Bear3.8 mi · Class 1 e-bike
Native Material · class 4
- Dead Dog3.7 mi · bike
Native Material · class 4 · Jun–Oct
- Upper Brackett Creek3.6 mi · bike + e-bike
Native Material · class 3
- Bitter Honey3.6 mi · bike + e-bike
Native Material · class 4
- Minnie3.4 mi · bike
Native Material · class 2
- Canyon Creek3.4 mi · bike + e-bike
Native Material · class 4
- Orchid Gulch3.4 mi · Class 1 e-bike
Native Material · class 4
- Johnson Canyon3.3 mi · bike + e-bike
Native Material · class 4
- Deadhorse Creek3.3 mi · bike + e-bike
Native Material · class 3
- Little Big Bear3.2 mi · bike + e-bike
Native Material · class 4
- Little Bear3.2 mi · bike + e-bike
Native Material · class 4
- Dore Creek3.1 mi · bike + e-bike
Native Material · class 3
- South Diaper Line3 mi · bike
Native Material · class 3
- Upper Cherry Creek2.9 mi · bike + e-bike
Native Material · class 4
- Buttermilk Creek2.7 mi · bike + e-bike
Unknown · class 4
- Purdy Creek2.5 mi · bike + e-bike
Native Material · class 4
- Willow Creek South2.5 mi · bike + e-bike
Native Material · class 4
- Derby Gulch2.4 mi · bike + e-bike
Native Material · class 4
- Buckskin Meadows2.2 mi · bike
Native Material · class 3
- North Cottonwood Access2 mi · bike
Native Material · class 3 · May–Dec
- Upper Bitter Creek2 mi · bike + e-bike
Native Material · class 4
- Upper Rumbaugh2 mi · bike + e-bike
Native Material · class 4
- Lower Smith Connector1.9 mi · bike + e-bike
Native Material · class 4
- Goose Creek1.9 mi · bike + e-bike
Native Material · class 4
- Lower Buck Ridge1.9 mi · bike + e-bike
Native Material · class 4
- Black Warrior1.9 mi · bike + e-bike
Native Material · class 4 · Jun–Dec
- Suce Creek West1.8 mi · bike
Native Material · class 3
- Carrot Basin Divide1.7 mi · bike + e-bike
Native Material · class 3
- Face Draw1.7 mi · bike
Native Material · class 3
- Sacagawea Pass1.7 mi · bike
Native Material · class 3
- Upper Lodgepole1.6 mi · bike + e-bike
Native Material · class 4
- East Fork Denny Creek1.6 mi · bike
Native Material · class 3
- Lower Purdy Creek1.5 mi · bike + e-bike
Native Material · class 4
- North Trail Creek Divide1.5 mi · bike
Native Material · class 3 · Jan–Mar, Jul–Dec
- Moser Creek1.5 mi · bike
Native Material · class 4
- Henderson Mountain1.5 mi · bike + e-bike
Native Material · class 4
- Upper Shenango1.3 mi · bike + e-bike
Native Material · class 4
- Big Bear1.3 mi · bike + e-bike
Native Material · class 4
- Upper Little Bear1.2 mi · Class 1 e-bike
Native Material · class 4
- Felix Canyon East1.2 mi · bike + e-bike
Native Material · class 4
- Rocky Canyon1.2 mi · bike
Native Material · class 3
- Upper Sage Creek1.2 mi · bike
Native Material · class 3
- Palisade Mountain Foothills1.1 mi · bike
Native Material · class 4
- Upper Smith Connector1.1 mi · bike + e-bike
Native Material · class 4
- Passage Falls1 mi · bike
Native Material · class 4
- Lower Moose Jaw1 mi · bike + e-bike
Native Material · class 4
- Frog Rock0.9 mi · bike
Native Material · class 3
- Bridger Bowl0.8 mi · bike
Native Material · class 3
- Bear Lakes0.8 mi · bike + e-bike
Native Material · class 4 · Jan–Mar, Jul–Dec
- Upper Cream Creek0.8 mi · bike + e-bike
Native Material · class 4
- Raptor View North0.7 mi · bike
Native Material · class 3
- Upper Big Bear0.7 mi · bike + e-bike
Native Material · class 4
- Jackson Divide Spur0.7 mi · bike + e-bike
Native Material · class 4
- Fairy Lakeshore0.5 mi · bike
Native Material · class 2
- Bangtail Creek Connector0.5 mi · bike + e-bike
Native Material · class 4
- Mt/Id-715 Overlook0.5 mi · bike
Native Material · class 3 · Jun–Dec
- Upper Derby Ridge0.5 mi · bike + e-bike
Native Material · class 4
Custer Gallatin National Forest bike-legal trail list (CSV)
Download all 495 bike- and Class 1 e-bike-designated trails in Custer Gallatin National Forest — name, miles, surface, grade, season, and e-bike class per trail, straight from USFS data.
E-bikes in Custer Gallatin National Forest
Class 1 on 381 segments · Class 2 on 381 · Class 3 on 381. See full e-bike rules for Custer Gallatin National Forest →
Where it is
Approximate center of Custer Gallatin National Forest. USFS trail geometry isn't mapped here — use the ranger district for trailheads.
Frequently asked questions
- What is the bike access grade for Custer Gallatin National Forest?
- Custer Gallatin National Forest earns a Bike Access Grade of A: 98% of its rideable trail miles are open to mountain bikes, with Class-1 e-bike access on part of the network. Excellent — most rideable trail miles are open to mountain bikes, with Class-1 e-bike access too.
- How many miles of mountain bike trail are in Custer Gallatin National Forest?
- Custer Gallatin National Forest has about 2,209 mi of bike-designated trail across 552 segments, out of 3,609 mi of total National Forest System trail.
- What is the riding season in Custer Gallatin National Forest?
- Most bike-designated trails in Custer Gallatin National Forest carry a Year-round season in USFS data; higher-elevation trails clear later.
- Are e-bikes allowed in Custer Gallatin National Forest?
- Only where designated. Class 1 e-bikes are recorded on 381 segments. See the e-bike rules page for the class-by-class breakdown.
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Where to stay near Custer Gallatin National Forest
Cabins, lodges, and campgrounds near Custer Gallatin National Forest in Montana — compare places to stay for a mountain-bike trip.
Top-rated places to stay near Custer Gallatin National Forest
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