Issy Alps 50k/100k/100M (WA)

King County, Washington, United States

64.0 miles (102.9 km) · 25,656 ft elevation gain · Loop · trail · Route

The Issy Alps 50k/100k/100M (WA) is a 64.0 mile route in King County, Washington, United States. The course features 25,656 feet of elevation gain and 25,653 feet of descent. The largest climb extends 5.4 miles, gaining 3 feet. The course averages 402 feet of vertical gain per mile. Approximately 34% of the route is runnable. The route follows trail surfaces. Terrain difficulty is rated as mountainous. Difficulty is rated 40.2 out of 10, placing it in the 97.96th percentile. This loop route attracts trail runners and hikers exploring Washington's mountain terrain.