Lower Clamshell Truck Trail

Monrovia · Los Angeles County · CA

3.8 miDistance
1,305 ftTotal climb
1,630 ftTotal descent
1,574 ftHigh point
820 ftLow point
ModerateDifficulty
unpavedSurface

Elevation profile

Lower Clamshell Truck Trail is a 3.8-mile moderate trail near Monrovia, in Los Angeles County, CA. It climbs 1,305 ft and descends 1,630 ft, between 820 ft and a high point of 1,574 ft. Moderate difficulty: calculated from 15% avg grade · 7.5 mi round trip, 2,979 ft climb. The surface is unpaved. Mapped for hiking, trail running, mountain biking, equestrian.

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