Niobrara River
Largest tributaries
Perciformes - Perches
Esociformes - Pikes
Siluriformes - Catfishes
Centrarchiformes - Basses and sunfishes
Cypriniformes - Carps
Acipenseriformes - Sturgeons and Paddlefish
Anabantiformes - Gouramies and snakeheads
Lepisosteiformes - Gars
Amiiformes - Bowfins
Moroniformes - Temperate basses
Clupeiformes - Herrings
Acanthuriformes - Surgeonfishes
Anguilliformes - Eels and morays
Gasterosteiformes - Sticklebacks
Percopsiformes - Trout-perches
Hiodontiformes - Mooneyes
Cyprinodontiformes - Toothcarps
Carcharhiniformes - Ground sharks
Petromyzontiformes - Lampreys
Perciformes - Perches
Esociformes - Pikes
Siluriformes - Catfishes
Centrarchiformes - Basses and sunfishes
Cypriniformes - Carps
Acipenseriformes - Sturgeons and Paddlefish
Anabantiformes - Gouramies and snakeheads
Lepisosteiformes - Gars
Amiiformes - Bowfins
Moroniformes - Temperate basses
Clupeiformes - Herrings
Acanthuriformes - Surgeonfishes
Anguilliformes - Eels and morays
Gasterosteiformes - Sticklebacks
Percopsiformes - Trout-perches
Hiodontiformes - Mooneyes
Cyprinodontiformes - Toothcarps
Carcharhiniformes - Ground sharks
Petromyzontiformes - Lampreys
The Niobrara River is a tributary of the Missouri River, approximately 568 miles (914 km) long, running through the U.S. states of Wyoming and Nebraska.
The river drains one of the most arid sections of the Great Plains, and has a low flow for a river of its length.