
The confluence region of the Mississippi River and Missouri River forms a complex landscape of islands and alluvial bottoms north of St Louis. This 1951 survey, updated with 1968 aerial data, reveals the suburban expansion into Bellefontaine Neighbors and Spanish Lake, where residential blocks are tinted in purple. Despite this growth, the northern reach remains defined by the vast Columbia Bottom and agricultural tracts in Portage des Sioux.
53 named features on this map. Tap any name to fly to it.
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8 editions found
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