In mid-August, the National Park Service began investigating a surprise reconfiguration of the Platte River mouth; a manmade effort which federal officials say was illegal, and, depending on how ...

Along the park’s Lake Superior shoreline, a rocky spit protrudes into the mouth of the Montreal River, which forms the boundary between Wisconsin and the western U.P. The river mouth is fenced ...

The mouth of the Mississippi River, emptying into the Gulf of Mexico south of New Orleans, Louisiana, is pictured from the International Space Station as it orbited 262 miles above.

PORT ANGELES – Few people are excited to see a big pile of sand, unless it’s a big pile of sand at the mouth of the Elwha River. In a yearlong dam removal and restoration project, scientists ...