
The Three Sisters Wilderness and Willamette National Forest converge in this high-altitude landscape of the Cascade Range. This 2024 survey documents a terrain defined by glacial and volcanic features, from the depression of The Potholes to the prominent heights of French Mountain and Lowder Mountain. The area is a critical hydrological divide, feeding drainage basins for the East Fork South Fork McKenzie River and French Pete Creek.
55 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.
1925 · Waldo Lake
USGS Topo · 1:125,000
1929 · Three Sisters
USGS Topo · 1:125,000
1930 · Maiden Peak
USGS Topo · 1:125,000
1932 · Three Sisters
USGS Topo · 1:125,000
1934 · Maiden Peak
USGS Topo · 1:125,000
1934 · Mc Kenzie Bridge
USGS Topo · 1:96,000
1940 · Mc Kenzie Bridge
USGS Topo · 1:125,000
1953 · Salem
USGS Topo · 1:250,000
1954 · Salem
USGS Topo · 1:250,000
1955 · Chucksney Mtn
USGS Topo · 1:62,500