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
Native Material · class 4 · Jun–Sep
- Skyland4.2 mi · Class 1 e-bike
Native Material · class 3
- Round Meadow Loop3.3 mi · bike
Native Material · class 4 · May–Oct
- Runaway Train2.9 mi · bike
Native Material · class 4 · Jun–Sep
- Chechako2.7 mi · bike
Native Material · class 4 · May–Oct
- Freebird2.3 mi · bike
Native Material · class 4 · Jun–Sep
- Kashmir2.3 mi · bike
Native Material · class 4 · Jun–Sep
- Krause Basin 9021.6 mi · Class 1 e-bike
Native Material · class 3
- Tu Minnie Chief1.5 mi · bike
Native Material · class 4 · May–Oct
- Krause Basin 9011.5 mi · Class 1 e-bike
Native Material · class 3
- Fox Run1.3 mi · bike
Native Material · class 4 · May–Oct
- Hope0.9 mi · bike
Native Material · class 3 · May–Oct
Intermediate grade (19)
Moderate grade band.
- Beardance6.8 mi · bike
Native Material · class 3
- Wild Bill - Truman Creek5.8 mi · Class 1 e-bike
Native Material · class 3
- Wild Bill - Eagle Mtn. Trail5.8 mi · Class 1 e-bike
Native Material · class 3
- Upper Dayton Creek Ohv4.2 mi · Class 1 e-bike
Native Material · class 3
- Phillips3.9 mi · bike
Native Material · class 3
- Lakeside To Blacktail3.4 mi · bike
Native Material · class 3
- Krause Basin 9053.4 mi · Class 1 e-bike
Native Material · class 3
- Lower South Fork2.7 mi · Class 1 e-bike
Native Material · class 3
- Waving Bear2 mi · Class 1 e-bike
Native Material · class 3
- Garry Lookout1.8 mi · Class 1 e-bike
Native Material · class 3
- Blacktail Ohv Trail1.5 mi · Class 1 e-bike
Native Material · class 3
- Skyland Road G1.4 mi · Class 1 e-bike
Native Material · class 3
- Teakettle1.4 mi · Class 1 e-bike
Native Material · class 3
- Voltage1.2 mi · Class 1 e-bike
Native Material · class 3
- Turkey Trot1.2 mi · Class 1 e-bike
Native Material · class 3
- Dam Loop1.2 mi · Class 1 e-bike
Native Material · class 3
- Krause Basin 9031.2 mi · Class 1 e-bike
Native Material · class 3
- Truman Connector South1 mi · Class 1 e-bike
Native Material · class 3
- Garry Lookout Spur0.7 mi · Class 1 e-bike
Native Material · class 3
Advanced grade (29)
Steep grade band.
- Alpine 755.3 mi · Class 1 e-bike
Native Material · class 3
- Tally- Ashley19.6 mi · Class 1 e-bike
Native Material · class 3
- Columbia Mtn. Loop12.1 mi · Class 1 e-bike
Native Material · class 3
- Ingalls - Mt Conner10 mi · Class 1 e-bike
Native Material · class 3
- Jimmie Ridge8.4 mi · Class 1 e-bike
Native Material · class 3
- Foys To Blacktail7.4 mi · bike
Native Material · class 2
- Wire Trail6.9 mi · Class 1 e-bike
Native Material · class 4
- Elk Mtn.6.8 mi · bike + e-bike
Native Material · class 3 · Jun–Oct
- Peterson Creek6 mi · Class 1 e-bike
Native Material · class 3
- Ashley Divide5.8 mi · Class 1 e-bike
Native Material · class 3
- South Fork Hemler Creek5.6 mi · Class 1 e-bike
Native Material · class 3
- Ashley Mtn5.5 mi · Class 1 e-bike
Native Material · class 3
- Sixmile Lookout4.4 mi · Class 1 e-bike
Native Material · class 3
- Johnson Peak4.2 mi · bike + e-bike
Native Material · class 3 · Jun–Oct
- Lupine Lake4 mi · bike + e-bike
Native Material · class 3 · Jun–Nov
- Griffin Creek3.8 mi · Class 1 e-bike
Native Material · class 3
- Doris Creek3.3 mi · Class 1 e-bike
Native Material · class 3
- Doris Ridge2.8 mi · Class 1 e-bike
Native Material · class 3
- Peters Ridge2.6 mi · Class 1 e-bike
Native Material · class 3
- Sixmile Sidehill2.5 mi · Class 1 e-bike
Native Material · class 3
- Boney Gulch2.5 mi · bike
Native Material · class 3 · Jun–Nov
- Tally Mtn.2.3 mi · Class 1 e-bike
Native Material · class 3
- Cyclone Lookout2.1 mi · Class 1 e-bike
Native Material · class 3
- Crane Creek2.1 mi · bike
Native Material · class 3
- Quintonkon Creek2 mi · Class 1 e-bike
Native Material · class 2
- Estes Lake1.5 mi · bike
Native Material · class 3
- Ray Shearer Interpretive1 mi · Class 1 e-bike
Native Material · class 2
- Bowen Lake0.8 mi · Class 1 e-bike
Native Material · class 2
- Council Rock0.5 mi · Class 1 e-bike
Native Material · class 2
Grade not recorded (6)
No grade band recorded in the USFS data.
- Pine Grass5.6 mi · Class 1 e-bike
Unknown
- Abbot Creek4.7 mi · bike
Unknown · class 3 · May–Oct
- Holbrook Trail4 mi · bike
Unknown · class 4
- Snowberry2.4 mi · bike
Unknown · class 3 · May–Oct
- Cedar Ridge2 mi · bike
Native Material · class 3 · May–Oct
- Mcgovern Pit0.8 mi · Class 1 e-bike
Native Material
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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