The record of Mississippi River floods goes back to the earliest explorers: High Flows and Flood History on the Lower Mississippi River Below Red River Landing, LA (1543 – Present) and the paleoclimate records show megafloods greatly exceeding even the 1927 flood: , , and (1999), Marine evidence for episodic Holocene megafloods in North America and the northern Gulf of Mexico, Paleoceanography, 14(4), 498–510, doi:10.1029/1999PA900017; and Tripsanas, E.K. et al., 2013. Paleoenvironmental and paleoclimatic implications of enhanced Holocene discharge from the Mississippi River based on the sedimentology and geochemistry of a deep core (JPC-26) from the Gulf of Mexico. Palaios, 28(9), pp.623–636.