Keystone · Summit County · CO
Up at Arapahoe is a 2.4-mile intermediate (blue) trail near Keystone, in Summit County, CO. It climbs 1,418 ft and descends 519 ft, between 11,559 ft and a high point of 12,457 ft. The surface is ground. Mapped for hiking, trail running, mountain biking.
All Summit County trailsSummit County mountain bikingSummit County hikingTrails near KeystoneCO trails
Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Updated 2026-07-21. Open the interactive map for routing, weather, and offline use.