OHV Trail Finder

Salmon-Challis National Forest

Idaho · 3,623.4 mi of motorized routes · 6 ranger districts · U.S. Forest Service MVUM

Salmon-Challis National Forest in Idaho carries 3,623.4 miles of motorized routes from the U.S. Forest Service Motor Vehicle Use Map — 2,725.4 miles of roads and 898 miles of trails across 6 ranger districts. Open any district for its full per-vehicle access matrix (ATV, motorcycle, side-by-side, 4x4 and e-bike), seasons, a route-network map, and GPX downloads. These pages are informational; the controlling document is each district's official MVUM.

Forest totals Salmon-Challis National Forest · Idaho
Total motorized miles
3,623.4

2,725.4 mi of roads · 898 mi of trails · Forest code 0413.

Ranger districts
6
Roads
2,725.4 mi
Trails
898 mi

Ranger districts in Idaho

The district is the grain — pick one for its full per-vehicle access matrix, seasons, a route-network map and GPX downloads.

Salmon-Challis National Forest ranger districts by motorized miles (highest first).
Access highlights
Challis-Yankee Fork Ranger District 1,059.7 704.9 354.8 ATV 800.4 mi · Motorcycle 1,059.8 mi · E-bike routes
Salmon-Cobalt Ranger District 928.9 814.4 114.5 ATV 868.8 mi · Motorcycle 928.9 mi · E-bike routes
Lost River Ranger District 584.3 411.5 172.8 ATV 551.9 mi · Motorcycle 584.2 mi · E-bike routes
North Fork Ranger District 544.2 442.2 102 ATV 450.4 mi · Motorcycle 543.2 mi · E-bike routes
Leadore Ranger District 358.7 220 138.7 ATV 293.9 mi · Motorcycle 358.7 mi · E-bike routes
Middle Fork Ranger District 147.6 132.4 15.2 ATV 135.3 mi · Motorcycle 147.6 mi · E-bike routes

Data: U.S. Forest Service, Enterprise Data Warehouse (EDW) Motor Vehicle Use Map — Roads (layer 1) and Trails (layer 2), retrieved 2026-07-11. A work of the U.S. Government, public domain (17 U.S.C. §105). State assignment: U.S. Census Bureau TIGERweb state boundaries.

Forest-wide vehicle access

How many of this forest's ranger districts designate each vehicle class, and the total designated miles across the forest.

Vehicle classes designated in Salmon-Challis National Forest, by number of districts.
Vehicle class Districts Open miles
ATV 6 3,100.7
Motorcycle / dirt bike 6 3,622.4
Other wheeled OHV 6 3,100.7
4WD > 50" 6 2,842.5
2WD > 50" 6 2,842.5
Tracked OHV > 50" 6 2,842.5
Other OHV > 50" 6 2,842.5
Tracked OHV < 50" 6 2,842.5
Other OHV < 50" 6 2,842.5
E-bike Class 1 6 3,622.4
E-bike Class 2 6 3,622.4
E-bike Class 3 6 3,622.4
Passenger vehicle 6 2,843.5
High-clearance vehicle 6 2,843.5
Truck 6 2,843.5
Bus 6 2,843.5
Motorhome 6 2,843.5
Important — informational, not a legal document

These pages summarise the Forest Service Motor Vehicle Use Map data; they are not the official MVUM and not legal documents. The controlling document is each district's official Motor Vehicle Use Map — carry it and follow posted signs.

Official Motor Vehicle Use Map for Salmon-Challis National Forest →

Data vintage: USFS EDW MVUM, retrieved 2026-07-11.

Explore

Browse all Idaho national-forest routes, read the methodology, or learn what an MVUM is.