{"id":9726,"date":"2024-01-01T05:20:09","date_gmt":"2024-01-01T04:20:09","guid":{"rendered":"https:\/\/www.aboutriver.com\/?p=9726"},"modified":"2024-01-01T05:20:09","modified_gmt":"2024-01-01T04:20:09","slug":"did-the-mississippi-river-run-backwards","status":"publish","type":"post","link":"https:\/\/www.aboutriver.com\/did-the-mississippi-river-run-backwards\/","title":{"rendered":"Did The Mississippi River Run Backwards"},"content":{"rendered":"
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The question of ‘Did the Mississippi River run backwards?’ must firstly be unpacked. It’s a complex question with several parts, but can be simplified by breaking down the geologic and seismic events which took place millions of years ago. For example, when the North American continent was still encompassed by a vast inland sea, areas such as the Great Lakes, Saint Lawrence River and the Mississippi River Valley were all connected by the once-extensive waterway. This vast force of water eroded entire mountainsides and shifted the land in unexpected ways. To truly understand the answer to this question, we must take a closer look at these events.<\/p>\n

Seismic events in the region were responsible for breaking its connection with other parts of the continent and forming separate bodies of water. Huge mountains were formed as a result of tectonic plate movement and provided a physical barrier which divided the landmass into various rivers and lakes. This led to the break up of the original expanse of water, with some of the water courses reverting back towards the Atlantic Ocean and some into the Gulf of Mexico. This seismic event caused large chunks of Earth to move and change the course of the rivers, with some of them changing direction and even flowing in a reverse direction.<\/p>\n

The most renowned reversal of a river’s path occurred with the Mississippi. It had flowed for millions of years in one direction, from its headwaters in the Great Lakes to the mouth of the Gulf of Mexico. When massive earthquakes shook the region, it forced the Mississippi to bend and weave around the barriers created by huge mountainsides, eventually leading it to flow in a reverse direction. Over a period of thousands of years, the effects of seismic activity increased until the Mississippi had reversed its path and began to flow southward. This seismic event meant that the once-stable river was now running against the current and created a new path for its future course.<\/p>\n

Geological experts have been examining evidence which suggests that this seismic event and re-routing of the Mississippi happened during the Pliocene epoch, approximately 2.6 million years ago. By studying fossilised evidence, they’ve been able to track the flows of rivers and oceans over the millennia, including the reverse flow of the Mississippi. Recent discoveries have led to the conclusion that, back in its distant past, the Mississippi had indeed reversed its course and flowed in a different direction.<\/p>\n