
The Cowlitz River and its complex tributaries define the topography of this Washington region during the early 1950s. The landscape is a mix of lowland agriculture on Cowlitz Prairie and Layton Prairie, and high-timber activity further east. At the confluence of the North Fork Toutle River and South Fork Toutle River, the settlement of Toutle serves as a local hub, supported by the nearby Toutle Lake School.
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1916 · Chehalis
USGS Topo · 1:125,000
1919 · Mount St Helens
USGS Topo · 1:125,000
1921 · Kalama
USGS Topo · 1:62,500
1937 · Eatonville
USGS Topo · 1:125,000
1941 · Olequa
USGS Topo · 1:62,500
1942 · Toutle
USGS Topo · 1:62,500
1943 · Willapa
USGS Topo · 1:62,500
1943 · Pigeon Springs
USGS Topo · 1:62,500
1953 · Hoquiam
USGS Topo · 1:250,000
1953 · Toutle
USGS Topo · 1:62,500