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Prior to its leveeing and control structures, the Mississippi switched course roughly every 600 to 1,000 years, finding a more efficient route to the Gulf of Mexico as it filled with sediment. Over the course of its history, the Mississippi has had 6 Holocene delta complexes, including the most recent Atchafalaya. Each delta complex experiences stages of compaction, subsidence, and building. This delta switching, combined with the high sediment load (7th highest in the world), has resulted in the current wetland rich Louisiana coast, with 30,000 km2 of delta plain and 41% of the coastal wetland area of the United States.  Read More


whitebirdsCoalition To Restore Coastal Louisiana


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