
Pigeon Springs and its surrounding watershed are documented here during the early 1940s, a period when the timber and water resources of Cowlitz County were being heavily utilized. The map illustrates a landscape of working ranches and river engineering, featuring several small dams such as the Mulholland Creek Dam, Coweeman River Dam, and Baird Creek Dam. The presence of the Coweeman CCC Camp reflects Depression-era infrastructure work that continued to shape the region's management into the war years.
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This is the sole edition of this map. No revisions or reprints were ever made.
1919 · Mount St Helens
USGS Topo · 1:125,000
1921 · Kalama
USGS Topo · 1:62,500
1922 · St. Helens
USGS Topo · 1:62,500
1940 · La Center
USGS Topo · 1:62,500
1941 · Yacolt
USGS Topo · 1:62,500
1941 · St Helens
USGS Topo · 1:62,500
1941 · Olequa
USGS Topo · 1:62,500
1942 · Toutle
USGS Topo · 1:62,500
1943 · St Helens
USGS Topo · 1:62,500
1948 · Vancouver
USGS Topo · 1:250,000