2021 Map of Columbia Bottom
USGS Topo · Published 2021About this map
The confluence area where the Missouri River meets the Mississippi River creates a complex landscape of shifting islands and industrial waterways. Settled communities like Spanish Lake and Glasgow Village sit on the higher ground west of the river bottoms, while the lowlands are dominated by expansive features such as Cora Island and Columbia Bottom. The map documents the intricate river management infrastructure, including Lock and Dam 26 and the Chain of Rocks Canal, which facilitate navigation past the natural Chain of Rocks shoals.
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Map Details
Editions of this 2021 Columbia Bottom Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1888 · St. Louis
USGS Topo · 1:62,500
1927 · Alton
USGS Topo · 1:62,500
1927 · St. Charles
USGS Topo · 1:62,500
1933 · Granite City
USGS Topo · 1:24,000
1933 · Clayton
USGS Topo · 1:24,000
1933 · Saint Charles
USGS Topo · 1:62,500
1934 · Alton
USGS Topo · 1:62,500
1935 · Granite City
USGS Topo · 1:24,000
1935 · Florissant
USGS Topo · 1:24,000
1935 · Monks Mound
USGS Topo · 1:24,000