USFS National Forest System Trails · Montana · Updated June 2026
Flathead National Forest Mountain Bike Trails
Flathead National Forest earns a Bike Access Grade of C: 27% of its rideable trail miles are open to mountain bikes, with Class-1 e-bike access on part of the network. Mixed — bikes are open on a meaningful share of rideable trails, but many are e-bike-only or discouraged.
Flathead National Forest carries 2,260 mi of mapped National Forest System trail, of which 79.6 mi across 27 segments is designated for mountain bikes, typically open May–Oct. Class 1 e-bikes are designated on 67 segments (235 mi).
What the USFS data shows for Flathead National Forest
Of the 2,260 mi of mapped trail in Flathead National Forest, 4% — 79.6 mi across 27 bike-designated segments — is open to mountain bikes in USFS travel-management data.
Tread is overwhelmingly native dirt: USFS lists native material on 810 of 883 surfaced segments (92%).
On the USFS difficulty rating, advanced is the most common designation here — 682 of 876 rated segments (78%) — across all uses, not bikes alone.
The headline bike season runs May–Oct; individual segments vary, with 5 distinct season windows recorded across the sampled bike trails.
The longest single named bike segment in the data is Alpine 7 at 55.25 mi on native dirt, rated advanced by USFS.
Class 1 e-bikes are designated on 67 segments (235 mi), and 6 segments carry an ADA-accessibility flag in the same dataset.
Trail surface
- Native Material810
- Snow65
- Imported Compacted Material8
USFS trail class (1 = primitive · 5 = developed)
- Class 3494
- Class 2298
- Class 469
- Class 123
4% 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 |
|---|---|---|---|---|
| Alpine 7 | 55.25 | Native Material | — | — |
| Tally- Ashley | 19.59 | Native Material | — | — |
| Columbia Mtn. Loop | 12.06 | Native Material | — | — |
| Ingalls - Mt Conner | 10.01 | Native Material | — | — |
| Jimmie Ridge | 8.42 | Native Material | — | — |
| Foys To Blacktail | 7.39 | Native Material | — | Year-round |
| Wire Trail | 6.89 | Native Material | — | — |
| Beardance | 6.82 | Native Material | — | Year-round |
| Elk Mtn. | 6.79 | Native Material | — | Jun–Oct |
| Peterson Creek | 6.03 | Native Material | — | — |
| Ashley Divide | 5.84 | Native Material | — | — |
| Wild Bill - Truman Creek | 5.78 | Native Material | — | — |
| Wild Bill - Eagle Mtn. Trail | 5.76 | Native Material | — | — |
| Pine Grass | 5.58 | Unknown | — | — |
| Summit | 5.58 | Native Material | — | Jun–Sep |
| South Fork Hemler Creek | 5.56 | Native Material | — | — |
| Ashley Mtn | 5.54 | Native Material | — | — |
| Abbot Creek | 4.74 | Unknown | — | May–Oct |
| Sixmile Lookout | 4.44 | Native Material | — | — |
| Skyland | 4.23 | Native Material | — | — |
| Upper Dayton Creek Ohv | 4.19 | Native Material | — | — |
| Johnson Peak | 4.17 | Native Material | — | Jun–Oct |
| Lupine Lake | 3.95 | Native Material | — | Jun–Nov |
| Holbrook Trail | 3.95 | Unknown | — | Year-round |
| Phillips | 3.94 | Native Material | — | Year-round |
Every trail in Flathead National Forest
All 67 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 (12)
Gentle grade band (shallow average slope).
- Summit5.6 mi · bike
- Skyland4.2 mi · Class 1 e-bike
- Round Meadow Loop3.3 mi · bike
- Runaway Train2.9 mi · bike
- Chechako2.7 mi · bike
- Freebird2.3 mi · bike
- Kashmir2.3 mi · bike
- Krause Basin 9021.6 mi · Class 1 e-bike
- Tu Minnie Chief1.5 mi · bike
- Krause Basin 9011.5 mi · Class 1 e-bike
- Fox Run1.3 mi · bike
- Hope0.9 mi · bike
Intermediate grade (19)
Moderate grade band.
- Beardance6.8 mi · bike
- Wild Bill - Truman Creek5.8 mi · Class 1 e-bike
- Wild Bill - Eagle Mtn. Trail5.8 mi · Class 1 e-bike
- Upper Dayton Creek Ohv4.2 mi · Class 1 e-bike
- Phillips3.9 mi · bike
- Lakeside To Blacktail3.4 mi · bike
- Krause Basin 9053.4 mi · Class 1 e-bike
- Lower South Fork2.7 mi · Class 1 e-bike
- Waving Bear2 mi · Class 1 e-bike
- Garry Lookout1.8 mi · Class 1 e-bike
- Blacktail Ohv Trail1.5 mi · Class 1 e-bike
- Skyland Road G1.4 mi · Class 1 e-bike
- Teakettle1.4 mi · Class 1 e-bike
- Voltage1.2 mi · Class 1 e-bike
- Turkey Trot1.2 mi · Class 1 e-bike
- Dam Loop1.2 mi · Class 1 e-bike
- Krause Basin 9031.2 mi · Class 1 e-bike
- Truman Connector South1 mi · Class 1 e-bike
- Garry Lookout Spur0.7 mi · Class 1 e-bike
Advanced grade (29)
Steep grade band.
- Alpine 755.3 mi · Class 1 e-bike
- Tally- Ashley19.6 mi · Class 1 e-bike
- Columbia Mtn. Loop12.1 mi · Class 1 e-bike
- Ingalls - Mt Conner10 mi · Class 1 e-bike
- Jimmie Ridge8.4 mi · Class 1 e-bike
- Foys To Blacktail7.4 mi · bike
- Wire Trail6.9 mi · Class 1 e-bike
- Elk Mtn.6.8 mi · bike + e-bike
- Peterson Creek6 mi · Class 1 e-bike
- Ashley Divide5.8 mi · Class 1 e-bike
- South Fork Hemler Creek5.6 mi · Class 1 e-bike
- Ashley Mtn5.5 mi · Class 1 e-bike
- Sixmile Lookout4.4 mi · Class 1 e-bike
- Johnson Peak4.2 mi · bike + e-bike
- Lupine Lake4 mi · bike + e-bike
- Griffin Creek3.8 mi · Class 1 e-bike
- Doris Creek3.3 mi · Class 1 e-bike
- Doris Ridge2.8 mi · Class 1 e-bike
- Peters Ridge2.6 mi · Class 1 e-bike
- Sixmile Sidehill2.5 mi · Class 1 e-bike
- Boney Gulch2.5 mi · bike
- Tally Mtn.2.3 mi · Class 1 e-bike
- Cyclone Lookout2.1 mi · Class 1 e-bike
- Crane Creek2.1 mi · bike
- Quintonkon Creek2 mi · Class 1 e-bike
- Estes Lake1.5 mi · bike
- Ray Shearer Interpretive1 mi · Class 1 e-bike
- Bowen Lake0.8 mi · Class 1 e-bike
- Council Rock0.5 mi · Class 1 e-bike
Grade not recorded (6)
No grade band recorded in the USFS data.
- Pine Grass5.6 mi · Class 1 e-bike
- Abbot Creek4.7 mi · bike
- Holbrook Trail4 mi · bike
- Snowberry2.4 mi · bike
- Cedar Ridge2 mi · bike
- Mcgovern Pit0.8 mi · Class 1 e-bike
Flathead National Forest bike-legal trail list (CSV)
Download all 67 bike- and Class 1 e-bike-designated trails in Flathead National Forest — name, miles, surface, grade, season, and e-bike class per trail, straight from USFS data.
E-bikes in Flathead National Forest
Class 1 on 67 segments · Class 2 on 67 · Class 3 on 67. See full e-bike rules for Flathead National Forest →
Where it is
Approximate center of Flathead 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 Flathead National Forest?
- Flathead National Forest earns a Bike Access Grade of C: 27% of its rideable trail miles are open to mountain bikes, with Class-1 e-bike access on part of the network. Mixed — bikes are open on a meaningful share of rideable trails, but many are e-bike-only or discouraged.
- How many miles of mountain bike trail are in Flathead National Forest?
- Flathead National Forest has about 79.6 mi of bike-designated trail across 27 segments, out of 2,260 mi of total National Forest System trail.
- What is the riding season in Flathead National Forest?
- Most bike-designated trails in Flathead National Forest carry a May–Oct season in USFS data; higher-elevation trails clear later.
- Are e-bikes allowed in Flathead National Forest?
- Only where designated. Class 1 e-bikes are recorded on 67 segments. See the e-bike rules page for the class-by-class breakdown.
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