Island Park · Fremont County · ID
National Forest Development Road 121 Trail is a 1.9-mile moderate trail near Island Park, in Fremont County, ID. It climbs 204 ft and descends 642 ft, between 6,656 ft and a high point of 7,179 ft. Moderate difficulty: calculated from 9% avg grade · 3.8 mi round trip, 859 ft climb. Mapped for other.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.