Lower Mississippi Valley Geologic History
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U.S. Army Corp
Fisk 44 Oversized Plates
Fisk 44 Oversized Plates Rectified
Volume I - Report
Volume II - Oversized Plates
Arkansas Archeological Survey
(With Permission)
Geology Map
Geological Society of America
Louisiana Geological Survey - Lower Mississippi Valley Cross Sections
Louisiana Goelogical Survey - Quaternary Geology of The Lower Mississippi Valley