Broken Top-South Sister (BTSS) (OR)

Deschutes County, Oregon, United States

20.9 miles (33.6 km) · 7,547 ft elevation gain · Loop · trail · Route

The Broken Top-South Sister (BTSS) (OR) is a 20.9 mile route in Deschutes County, Oregon, United States. The course features 7,547 feet of elevation gain and 7,587 feet of descent. The largest climb extends 5.5 miles, gaining 3,121 feet. The course averages 365 feet of vertical gain per mile. Approximately 45% of the route is runnable. The route follows trail surfaces. Terrain difficulty is rated as mountainous. Difficulty is rated 21.4 out of 10, placing it in the 88.06th percentile. This loop route attracts trail runners and hikers exploring Oregon's mountain terrain.