
Yacolt and the surrounding timberlands of the Gifford Pinchot National Forest define this 1950s landscape in Clark and Cowlitz counties. The region is shaped by the powerful hydrology of the Lewis River and its major hydroelectric impoundments, Lake Merwin and Yale Lake. Local life is anchored in small settlements like Amboy and Chelatchie, connected by a network of industrial and rural routes including Reservoir Road and Worthington Road.
78 named features on this map. Tap any name to fly to it.
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2 editions found
1897 · Portland
USGS Topo · 1:62,500
1905 · Portland
USGS Topo · 1:62,500
1918 · Troutdale
USGS Topo · 1:62,500
1919 · Mount St Helens
USGS Topo · 1:125,000
1934 · Troutdale
USGS Topo · 1:48,000
1940 · Lookout Mtn
USGS Topo · 1:62,500
1940 · Portland
USGS Topo · 1:62,500
1940 · La Center
USGS Topo · 1:62,500
1941 · Yacolt
USGS Topo · 1:62,500
1941 · Camas
USGS Topo · 1:62,500