Many people assume the longest river in the U.S. is the Mississippi, but that title belongs to the Missouri and part of American agriculture history.

Major cities like Pittsburgh, Cincinnati, and Louisville along its banks. - Longest river entirely in Texas. - Watershed: 45,600 sq miles. - Famous for reservoirs like Lake Possum Kingdom.

Deepest river, 720 feet, strong currents, vast basin. Asia’s longest, 656 feet deep, cultural and economic lifeline. Depth ...