Nemaha River basin

The Nemaha River basin includes the areas of the U.S. state of Nebraska below the Platte River basin that drain directly into the Missouri River. The major streams of the drainage include Weeping Water Creek, Muddy Creek, Little Nemaha River, and Big Nemaha River. The basin has a total area of approximately 2,800 square miles (7,300 km²), and includes much of southeastern Nebraska.

The name 'Nemaha' originates in the Ioway-Otoe-Missouria phrase ñí-máha, which means 'water-soil' and refers to the muddy water at corn-planting time.