Thunder Lake Trail

Allenspark · Boulder County · CO

8.9 miDistance
2,771 ftTotal climb
2,771 ftTotal descent
10,688 ftHigh point
8,884 ftLow point
ModerateDifficulty

Elevation profile

Thunder Lake Trail is a 8.9-mile moderate trail near Allenspark, in Boulder County, CO. It climbs 2,771 ft and descends 2,771 ft, between 8,884 ft and a high point of 10,688 ft. Moderate difficulty: calculated from 12% avg grade · 8.9 mi loop, 2,816 ft climb. Mapped for hiking.

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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.