Twin Sisters (WA)

Whatcom County, Washington, United States

13.1 miles (21.1 km) · 4,642 ft elevation gain · Loop · trail · Route

Route facts

Distance	13.1 mi (21.1 km)
Elevation gain	4,642 ft (1,415 m)
Average gain	353 ft per mile (67 m per km)
Longest climb	5.4 mi, 3,711 ft of gain
Steepest climb grade	41.4%
Runnable	23% of the route
Climbs / descents	2 climbs, 2 descents
Profile shape	Up, then down
Difficulty score	18.1 of 100
Surface	trail
Route shape	Loop
Type	Route

Grade breakdown

Grade band	Share of route
Flat	4%
Mild uphill	8%
Moderate uphill	5%
Steep uphill	37%
Mild downhill	5%
Moderate downhill	6%
Steep downhill	35%

Questions about Twin Sisters (WA)

How much elevation gain does Twin Sisters (WA) have?

Twin Sisters (WA) has 4,642 ft (1,415 m) of elevation gain over 13.1 miles (21.1 km). That averages 353 ft of gain per mile.

How difficult is Twin Sisters (WA)?

The difficulty score for Twin Sisters (WA) is 18.1 of 100. That is harder than 88.5% of routes at a similar distance. About 23% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.

What is the longest climb on Twin Sisters (WA)?

The longest climb on Twin Sisters (WA) runs 5.4 miles (8.7 km) and gains 3,711 ft (1,131 m). The steepest climb grade on the route is 41.4%.