Hike to Foss River and Lakes

Rate this Adventure Washington West Fork Foss Trailhead

Added by Colton Jacobs

Take your friends from out of town here. This trail has lakes, rivers, waterfalls, glaciers, and a lot of greenery. 

Choose from Trout Lake (1.6 miles each way with 500 feet of elevation gain), Copper Lake (4.2 miles each way with 2400 feet of elevation gain), or Big Heart Lake at 7.3 miles each way, with 3300 feet elevation gain). There are plenty of camp sites if you decide to go overnight at any of the lakes, however it is possible to do the whole trip in one (very long) day. The trail stays fairly level up until you pass Trout Lake, after that it climbs rigorously all the way to Copper Lake. After you reach Copper Lake the trail goes around the lake, climbs up and down another peak and you arrive at Big Heart Lake with vast views of the lake and glaciers above. 

Pack List

  • Backpack
  • Water or water filter, there is plenty of water to drink if you have a filter.
  • Proper footwear
  • Lunch
  • Waterproof jacket
  • Map or GPS 

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Please respect the places you find on The Outbound.

Always practice Leave No Trace ethics on your adventures. Be aware of local regulations and don't damage these amazing places for the sake of a photograph. Learn More



Hiking, Photography

Skill Level:



Spring, Summer, Autumn

Trail Type:



4.2 Miles

Elev. Gain:

2400 Feet


Cliff Jumping
Dog Friendly
Easy Parking
Swimming Hole

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Added by Colton Jacobs

Seattle based outdoor lifestyle, and action sports photographer.

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