Big Marvine Loop (CO)

Rio Blanco County, Colorado, United States

22.9 miles (36.9 km) · 3,320 ft elevation gain · Loop · trail · Route

The Big Marvine Loop (CO) route traverses 22.9 miles through Rio Blanco County, Colorado, United States. Elevation gain totals 3,320 feet, with 3,540 feet of descent. The largest climb extends 2.4 miles, gaining 1,230 feet. The course averages 148 feet of vertical gain per mile. About 69% of the distance is runnable terrain. Terrain is predominantly trail. Terrain difficulty is rated as very hilly. Difficulty is rated 14.4 out of 10, placing it in the 77.38th percentile. The route draws trail runners and hikers interested in technical terrain in Colorado.