
The Siletz River and its complex drainage network define this high-elevation landscape along the boundary between Lincoln and Polk counties. The terrain is characterized by steep ridges and deep drainages, including the North Fork Siletz River and the South Fork Siletz River, which converge in the southern portion of the sheet. Notable peaks such as Stott Mtn and Sugarloaf Mtn overlook a labyrinth of watercourses including Warnicke Creek and Crowley Mine Cr. This 2017 survey reveals the modern forestry and conservation patterns of the Oregon Coast Range, where human infrastructure is limited to primitive access routes like Murphy Rd and Riley Peak Rd. The presence of labels like Crowley Mine Cr suggests the area's history of resource extraction, while the headwaters of the Salmon River in the north highlight the region's importance as a critical watershed.
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This is the sole edition of this map. No revisions or reprints were ever made.
1941 · Nestucca Bay
USGS Topo · 1:62,500
1942 · Euchre Mtn
USGS Topo · 1:62,500
1942 · Spirit Mtn
USGS Topo · 1:62,500
1942 · Nestucca Bay
USGS Topo · 1:62,500
1942 · Valsetz
USGS Topo · 1:62,500
1943 · Euchre Mtn
USGS Topo · 1:62,500
1948 · Vancouver
USGS Topo · 1:250,000
1950 · Vancouver
USGS Topo · 1:250,000
1950 · Vancouver
USGS Topo · 1:250,000
1953 · Salem
USGS Topo · 1:250,000