3.2 mi from the trailheadMarble Mountain Group Picnic Site
Campground

7.5 mi out & back, trail only · 2,431 ft gain · 4,110 ft high point · Hard
Reached from Red Rock Pass Trailhead, 9.3 mi each way
In Gifford Pinchot National Forest · Washington · OpenStreetMap contributors
Castle Lake Trail goes out and back 7.5 mi to Castle Lake in Gifford Pinchot National Forest, climbing 2,431 ft.
2,431 ft of gain round trip.
The closest places to sleep, measured from the trailhead.
Ranked the same way, within twenty-five miles.
What the trail reaches, measured from the start.
The route at the trailhead. Drag with two fingers, or hold a key to zoom.
Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Photos: Wikimedia Commons contributors, licensed as shown on each photo. Download the trail and feature data.
Campground · Washington
13.9 mi one way · 2,792 ft gain · Very hard
Gifford Pinchot National Forest · Camp 8 mi away
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No carrier reports signal at this spot.
Today: Mostly Cloudy then Chance Light Rain · wind 3 mph SE