1.3 mi from the trailheadMarble Mountain Group Picnic Site
Campground

19.1 mi out & back · 10,926 ft gain · 8,326 ft high point · Very hard
Via the Ptarmigan Trail and the Monitor Ridge Climbing Route (4.3 mi)
In Gifford Pinchot National Forest · Washington · OpenStreetMap contributors
Worm Flows Climbing Route climbs 10,926 ft to 8,326 ft over 19.1 mi out and back via Ptarmigan Trail and Monitor Ridge Climbing Route. The route passes Swift Glacier and Dryer Glacier and approaches the summit.
10,926 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 hike from its start, the approach dashed. 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
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No carrier reports signal at this spot.
Today: Slight Chance Rain Showers · wind 2 mph WNW