Pumice Flat Trail

Pumice Flat Trail – Crater Lake National Park

Difficulty: Moderate

Length: 2.73 miles (4.39 km)

Elevation: 5853 – 6342 ft (1784 – 1933 m)

Trailhead coordinates:

Latitude: N +42° 50.160 or 42.836

Longitude: W -122° 8.543 or -122.142

Altitude: 5853* ft (1784* m)

REI Trails Project  partners with Crater Lake Institute to produce their trails app. Click the map below, get the app – then come back, we offer more.

Trail Description


A lodgepole pine forest in winter, Crater Lake National Park,  photo by Robert Mutch

This trail moves from Hwy 62 to the Stuart Falls trail and the southern portion of the Pacific Crest Trail (PCT). Lodgepole pine is a major component of the forest cover in this area.

Trailhead location: The trailhead is located on Hwy 62 just a few hundred feet south of the Lodgepole picnic area turnout and 2.75 miles south of the Annie Springs south entrance. It is also 6.9 miles from the southern park border with Hwy 62. Look to the south side of the road for the trailhead.

Seasonal Information: Expect the trail to be covered in snow from October to early July, however, conditions vary somewhat from year to year. See Crater Lake Current Conditions for more information.

Trail Profile for Pumice Flat Trail (same as Bald Crater Loop Trail)

Related Maps

Digital USGS topographic maps (PDF files) – the following maps are relevant to the Bald Crater Loop trail. See more Crater Lake Institute online USGS digital maps.

Series Name Year Scale Contour Interval File
USGS 7.5′ Union Peak 1985 1:24,000 40 ft usgs-union-peak-7.5
USGS 30′ x 60′ Crater Lake 1989 1:100,000 50 m usgs-crater-lake-30-minute
USGS 30′ x 60′ Diamond Lake 1978 1:100,000 50 m usgs-diamond-lake-30-minute
USGS 1° x 2° Klamath Falls 1970 1:250,000 200 ft usgs-klamath-falls-1-2
USGS 1° x 2° Medford 1976 1:250,000 200 ft usgs-medford-1-2
USGS 1° x 2° Roseburg 1970 1:250,000 200 ft usgs-roseburg-1-2


Please remember to practice “leave no trace outdoor ethics” when you are out on Crater Lake National Park’s trails…and have fun!

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