Mainline

Black Diamond · King County · WA

0.7 miDistance
16 ftTotal climb
20 ftTotal descent
554 ftHigh point
531 ftLow point
EasyDifficulty

Elevation profile

Mainline is a 0.7-mile easy trail near Black Diamond, in King County, WA. It climbs 16 ft and descends 20 ft, between 531 ft and a high point of 554 ft. Easy difficulty: calculated from 1% avg grade · 1.3 mi round trip, 39 ft climb. Mapped for hiking, trail running, mountain biking.

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