
Pittsburg serves as the focal point for this survey of Columbia County’s interior, where the Nehalem River winds through the deep Nehalem Valley. The landscape is defined by its industrial timber infrastructure, evidenced by an extensive network of mainline logging roads including the Crooked Creek Mainline, Kauppi Mainline, and Barnhardt Mnln. These routes traverse the high ridges between drainage basins like Battle Creek and Crooked Creek, reflecting the area's history of forest management and resource extraction. Significant water features such as Hawkins Lake and Lindsay Lake sit alongside smaller landmarks like O'Black Pond. The intersection of the Scappoose Vernonia Hwy and the Nehalem River at Pittsburg highlights the traditional transportation corridor that connects this timber country to the larger valley systems.
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This is the sole edition of this map. No revisions or reprints were ever made.
1919 · Mayger
USGS Topo · 1:62,500
1940 · Vernonia
USGS Topo · 1:62,500
1941 · Keasey
USGS Topo · 1:62,500
1941 · Clatskanie
USGS Topo · 1:62,500
1941 · Cathlamet
USGS Topo · 1:62,500
1943 · Vernonia
USGS Topo · 1:62,500
1943 · Keasey
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