Ouachita River oxbows and swampy brakes define this low-lying landscape south of the Smackover Creek confluence. The town of Calion sits at a strategic bend in the river, anchored by Calion Lake and the Lake Calion Dam. This region is a study in industrial and natural coexistence, where the Smackover Oil and Gas Field and several others, including the Mud Lake Oil and Gas Field, operate amidst a complex network of waterways like Tupelo Gum Brake and Cobeen Brake.
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1927 · El Dorado
USGS Topo · 1:62,500
1930 · El Dorado
USGS Topo · 1:62,500
1933 · Strong
USGS Topo · 1:62,500
1934 · Moro Bay
USGS Topo · 1:62,500
1937 · Strong
USGS Topo · 1:62,500
1938 · Moro Bay
USGS Topo · 1:62,500
1939 · Moro Bay
USGS Topo · 1:62,500
1939 · Strong
USGS Topo · 1:62,500
1951 · El Dorado
USGS Topo · 1:62,500
1953 · El Dorado
USGS Topo · 1:250,000