Lower Mississippi River Historical Floodplain - circa 1899

Map of the alluvial valley of the Mississippi River from the head of St. Francis Basin to the Gulf of Mexico, showing lands subject to overflow, location of levees and trans-alluvial profiles Downloaded from: https://www.digitalcommonwealth.org/search/commonwealth:7h14b0450 Edited (to correct position of panels) and georeferenced by Yvonne Allen (USFWS) to geographic NAD1927 using ArcGIS , 3rd order polynomial and 80 ground control points using lat lon grid. SERVICE DEFINITION FILE ONLY For geographic NAD27 geotiff see: https://www.sciencebase.gov/catalog/item/58f66491e4b0bd52222f7821