About mountain biking in Custer County

Custer County, Idaho has 45 named trails tagged for mountain biking, covering 121 miles, an average of 2.7 miles each. The longest is East Fork Valley, at 11.5 miles. 8 run 5 miles or longer.

All 45 mountain biking trails, longest first

East Fork ValleyHikeMTB11.5 mi Champion CreekHikeMTB11.1 mi Hay-Knapp CreekHikeMTB10.5 mi Redfish-Stanley TrailMTB9.5 mi Sunday CreekHikeMTB8.2 mi Williams Creek TrailHikeMTB6.9 mi Twin CreekHikeMTB6.8 mi Hell Roaring TrailHikeMTB5.1 mi Estes Mtn TrailHikeMTB5.0 mi Elk Meadow-Park CreekHikeMTB4.7 mi Elk MountainHikeMTB3.8 mi Redfish Ridge TrailHikeMTB3.1 mi Kinnikinic CreekHikeMTB2.9 mi Little Basin CreekHikeMTB2.6 mi National Forest Development Road 053HikeMTB2.4 mi Washington PeakHikeMTB2.3 mi Little Basin CutoffHikeMTB2.2 mi John HenryHikeMTB2.1 mi Upper GrandHikeMTB2.0 mi Trail 616HikeMTB1.9 mi Kelly Creek RoadMTB1.7 mi Ebb And FlowHikeMTB1.7 mi Fisher Creek TrailHikeMTB1.5 mi Rattlesnake AlleyHikeMTB1.0 mi Golf Course LoopHikeMTB1.0 mi Lower Blue ViewHikeMTB0.9 mi Stanley Creek RoadMTB0.8 mi Upper Blue ViewHikeMTB0.7 mi Joy Ride AHikeMTB0.7 mi Rocky RoadHikeMTB0.7 mi Lower GrandHikeMTB0.7 mi Lower BuzzardHikeMTB0.6 mi Skull ValleyHikeMTB0.6 mi ValleyHikeMTB0.6 mi OverlookHikeMTB0.4 mi MahoganyHikeMTB0.4 mi Upper BuzzardHikeMTB0.3 mi ChukarHikeMTB0.3 mi Kid's ReconnectHikeMTB0.3 mi Shark's ToothHikeMTB0.3 mi Joy Ride BHikeMTB0.2 mi Elk CreekHikeMTB0.2 mi RumbleHikeMTB0.2 mi Redfish Outlet ConnectorHikeMTB0.2 mi BridgeHikeMTB0.2 mi

← All Custer County trails

Trail geometry from OpenStreetMap contributors, licensed ODbL. Elevation from the USGS 3D Elevation Program. Compiled and published by Trailmonger · trail data last rebuilt August 9, 2026.