Mt Thomson West Ridge (WA)

King County, Washington, United States

16.8 miles (27.0 km) · 5,283 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.

Route facts

Distance	16.8 mi (27.0 km)
Elevation gain	5,283 ft (1,610 m)
Average gain	315 ft per mile (60 m per km)
Longest climb	5.6 mi, 2,468 ft of gain
Steepest climb grade	80.8%
Runnable	49% of the route
Climbs / descents	2 climbs, 3 descents
Profile shape	Up, then down
Difficulty score	13.8 of 100
Surface	trail
Route shape	Loop
Type	Route

Grade breakdown

Grade band	Share of route
Flat	8%
Mild uphill	16%
Moderate uphill	7%
Steep uphill	22%
Mild downhill	17%
Moderate downhill	8%
Steep downhill	22%

Questions about Mt Thomson West Ridge (WA)

How much elevation gain does Mt Thomson West Ridge (WA) have?

Mt Thomson West Ridge (WA) has 5,283 ft (1,610 m) of elevation gain over 16.8 miles (27.0 km). That averages 315 ft of gain per mile.

How difficult is Mt Thomson West Ridge (WA)?

The difficulty score for Mt Thomson West Ridge (WA) is 13.8 of 100. That is harder than 80.8% of routes at a similar distance. About 49% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.

What is the longest climb on Mt Thomson West Ridge (WA)?

The longest climb on Mt Thomson West Ridge (WA) runs 5.6 miles (9.0 km) and gains 2,468 ft (752 m). The steepest climb grade on the route is 80.8%.