King County, Washington, United States
16.8 miles (27.0 km) · 5,451 ft elevation gain · Loop · trail · Route
Mt Thomson West Ridge (WA) is a 16.8-mile loop route in King County, Washington, United States, gaining 5,451 feet of elevation. The route follows a up-and-over elevation profile. The terrain breaks into 5 distinct sections including 3 significant climbs. The longest climb covers 5.6 miles gaining 2,720 feet at an average 8.4% grade. About 48% of the terrain is runnable, with significant hiking sections. The route opens with a climb and finishes with a descent.
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