Amboy serves as the central hub of this Clark County landscape, where the foothills meet the varied waterways of the Lewis River system. The northern reach is dominated by the expansive Lake Merwin, created by damming the river, which also feeds into several smaller impoundments like Leroy Anderson Reservoir and Fassett Reservoir. To the east, the Chelatchie Prairie indicates a shift in the local terrain, supporting the small settlement of Chelatchie and its namesake creek.
92 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.
1919 · Mount St Helens
USGS Topo · 1:125,000
1940 · La Center
USGS Topo · 1:62,500
1941 · Yacolt
USGS Topo · 1:62,500
1943 · Pigeon Springs
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
1953 · Hoquiam
USGS Topo · 1:250,000
1953 · Pigeon Springs
USGS Topo · 1:62,500
1953 · Cougar
USGS Topo · 1:62,500