Greenwater Lakes Trail

Mount Baker-Snoqualmie National Forest, Washington, United States

17.6 miles (28.3 km) · 3,966 ft elevation gain · Loop · trail · Route

Greenwater Lakes Trail is a 17.6-mile loop route in Mount Baker-Snoqualmie National Forest, Washington, United States, gaining 3,966 feet of elevation. The route follows a valley-shaped elevation profile. The terrain breaks into 5 distinct sections including 2 significant climbs. The longest climb covers 6.6 miles gaining 3,119 feet at an average 9.0% grade. Only 38% of the terrain is runnable — expect substantial hiking throughout. The route opens with a descent and finishes with a climb.

Route facts

Distance	17.6 mi (28.3 km)
Elevation gain	3,966 ft (1,209 m)
Average gain	226 ft per mile (43 m per km)
Longest climb	13.2 mi, 1,796 ft of gain
Steepest climb grade	29.5%
Runnable	38% of the route
Climbs / descents	2 climbs, 3 descents
Profile shape	Down, then up
Difficulty score	18.2 of 100
Surface	trail
Route shape	Loop
Type	Route

Grade breakdown

Grade band	Share of route
Flat	11%
Mild uphill	5%
Moderate uphill	42%
Steep uphill	1%
Mild downhill	8%
Moderate downhill	14%
Steep downhill	19%

Questions about Greenwater Lakes Trail

How much elevation gain does Greenwater Lakes Trail have?

Greenwater Lakes Trail has 3,966 ft (1,209 m) of elevation gain over 17.6 miles (28.3 km). That averages 226 ft of gain per mile.

How difficult is Greenwater Lakes Trail?

The difficulty score for Greenwater Lakes Trail is 18.2 of 100. That is harder than 88.5% of routes at a similar distance. About 38% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.

What is the longest climb on Greenwater Lakes Trail?

The longest climb on Greenwater Lakes Trail runs 13.2 miles (21.3 km) and gains 1,796 ft (548 m). The steepest climb grade on the route is 29.5%.