Explore where Acadia National Park is. Learn about its stunning map, unique geology shaped by glaciers, rich history, and key ...

During the 20th century, thousands of dams were built on Mississippi River tributaries stopping the flow of fine silt, clay and other sediment from reaching the delta and seafloor to offset erosion.

Should Louisiana's $2 billion Mid-Barataria Sediment Diversion project be built, at full capacity it could move 40,000 tons of clay, silt and sand per day from the Mississippi River into the ...

Mississippi River water levels are plummeting to an all-time low this week at Memphis in the wake of a sweltering summer and ongoing drought – setting a record for the second consecutive year ...

Visitors are seen at Tower Rock, a formation typically only reachable by boat. Missouri Department of Conservation Nestled in the middle of the Mississippi River is a 400-million-year-old rock ...

The research centers on the Mississippi below the Ohio River confluence, in Cairo, Ill. It uses river sediment records and tree rings from once-drowned oaks to infer past flow patterns and floods ...

A saltwater wedge is making its way up the drought-stricken Mississippi River, threatening drinking water. New Orleans Mayor Latoya Cantrell signed an emergency declaration Friday.

Legal agreements govern the Great Lakes and some river systems in the U.S., but the Mississippi River doesn’t have a compact. Some mayors on the waterway think it’s time to change that.