The Cowlitz River flows through the northern reaches of this landscape, where the Cowlitz Trout Hatchery stands near the base of the Cowlitz Prairie. This area is defined by the transition from the river basin to the forested uplands that separate Lewis and Cowlitz counties. Small, scattered settlements like Eden Valley and Layton Prairie are connected by a network of rural roads including Wa-505 and Merchant Rd.
49 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.
1916 · Chehalis
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
1953 · Hoquiam
USGS Topo · 1:250,000
1953 · Toutle
USGS Topo · 1:62,500
1953 · Castle Rock
USGS Topo · 1:62,500
1954 · Onalaska
USGS Topo · 1:62,500
1954 · Centralia
USGS Topo · 1:62,500
1957 · Hoquiam
USGS Topo · 1:250,000