Lost Lake Trail is a 10.4 mile heavily trafficked out and back trail located near Enumclaw, WA that features a lake and is rated as difficult. The trail is primarily used for hiking, walking, and horses and is accessible from July until October. Horses are also able to use this trail.
From Seattle, east on I-90, south on I-405 and then south on Highway 169 to Enumclaw. In Enumclaw, S on Highway 410. 18.8 miles past mile marker 26 turn Left on FSR 70 for 9.7 miles. Right on FSR 7033 for 0.2 miles to trailhead.
very pretty lake. there is a bridge out and trails are not clearly marked. the water is beautiful and you should be able to see a couple other lakes on the way as well
The trail was nicely maintained and has had some recent work.
The horses were sad to see yellow jackets about 3/4 of way to top.
On horseback the trail is a challenge best for experienced trail riders.
The trail started (for us) at the Green Lake Trailhead. A few miles of relatively flat walking til we hit the second green lake. the bridge was out there so we went over the logs that had fallen to cross the water. Once on the other side, the ascension starts. Walking for a little while, you hit the "y" in the road that takes you to (left) echo lake and (right) lost lake. We took the right and it's a pretty steady uphill hike. It was snowing and everything was white and beautiful. Finally arriving at the lake on the left, we noticed that it was hidden with no signage whatsoever. Thank goodness for the steps in the snow so we could follow. Overall, it was a majestic little lake that was a brilliant bluish green. Very peaceful and st this tone