North Shore · Riverside County · CA
Mastodon Mine Loop Trail is a 4.5-mile moderate trail near North Shore, in Riverside County, CA. It climbs 940 ft and descends 865 ft, between 2,990 ft and a high point of 3,371 ft. Moderate difficulty: calculated from 8% avg grade · 9.0 mi round trip, 1,833 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.