About mountain biking in Yellowstone County

Yellowstone County, Montana has 15 named trails tagged for mountain biking, covering 26.0 miles, an average of 1.7 miles each. The longest is Underdog, at 4.0 miles.

What the mountain biking trails in Yellowstone County are like

By length, 4 are under a mile and 11 run 1 to 5 miles. 2 are loops, ending where they start; the longest is Underdog, at 4.0 miles.

Every one carries a difficulty rating: 8 easy and 7 moderate. Of the 12 with measured elevation, Kyra's Joy climbs the most, about 762 ft.

All 15 mountain biking trails, longest first

UnderdogHikeMTB4.0 mi Kyra's JoyHikeMTB3.2 mi City of Billings Designated Bicycle RouteMTB3.0 mi BanditHikeMTB2.4 mi Roller CoasterHikeMTB1.9 mi Sleepy HollowHikeMTB1.9 mi RedlineHikeMTB1.8 mi SouthwestHikeMTB1.6 mi Shiloh Conservation TrailHikeMTB1.5 mi Owl Be BackHikeMTB1.1 mi TumbleweedHikeMTB1.0 mi Big Ditch TrailHikeMTB0.9 mi Hoskins (Kids) LoopHikeMTB0.8 mi Stewart Park TrailHikeMTB0.6 mi Rims Mountain Bike PathHikeMTB0.4 mi

← All Yellowstone 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 October 25, 2026.