
Cathlamet Bay and its complex archipelago of marshy islands dominate this coastal landscape east of Astoria. This 2014 survey reveals the intricate drainage patterns of the Columbia River estuary, where numerous channels like the Prairie Channel and Woody Island Channel weave around landmasses such as Russian Island and Grassy Island. The mainland terrain transitions from the low-lying reaches of the John Day River and Wallooskee River to the elevated ground at Fern Hill.
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This is the sole edition of this map. No revisions or reprints were ever made.
1919 · Astoria
USGS Topo · 1:62,500
1938 · Fort Columbia
USGS Topo · 1:62,500
1939 · Astoria
USGS Topo · 1:62,500
1940 · Svensen
USGS Topo · 1:62,500
1940 · Brookfield
USGS Topo · 1:62,500
1943 · Fort Columbia
USGS Topo · 1:62,500
1949 · Astoria
USGS Topo · 1:24,000
1949 · Knappton
USGS Topo · 1:24,000
1949 · Cathlamet Bay
USGS Topo · 1:24,000
1949 · Green Mountain
USGS Topo · 1:24,000