
The Mount Thielsen Wilderness occupies the northern expanse of this survey, where the high-altitude volcanic landscape transitions into the heavily forested tracts of the Umpqua National Forest and Winema National Forest. The Pacific Crest National Scenic Trl winds through the central and western sections, tracing a path through the pumice-strewn terrain shaped by the eruptive history of nearby peaks. Central to this landscape is Timber Crater, a prominent shield volcano that stands as a landmark for backcountry travelers.
23 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1889 · Klamath
USGS Topo · 1:250,000
1891 · Ashland
USGS Topo · 1:250,000
1893 · Ashland
USGS Topo · 1:250,000
1894 · Klamath
USGS Topo · 1:250,000
1897 · Ashland
USGS Topo · 1:250,000
1917 · Diamond Lake
USGS Topo · 1:125,000
1935 · Chemult
USGS Topo · 1:96,000
1941 · Chemult
USGS Topo · 1:125,000
1955 · Crescent
USGS Topo · 1:250,000
1955 · Klamath Falls
USGS Topo · 1:250,000