Which river is the longest in Nebraska?

The Missouri River is indeed the longest river in Nebraska, stretching approximately 2,341 miles and forming a significant portion of the state's eastern border. It is a major waterway that serves both historical and economic purposes, being a key route for transport and trade. The Missouri River has played an important role in the development of the state, contributing to agriculture, industry, and recreation.

Other rivers mentioned, such as the Platte River, Niobrara River, and Loup River, while significant in their own right, do not match the length of the Missouri River. The Platte River is notable for its vast shallow areas and interesting ecological features, but its length does not surpass that of the Missouri. The Niobrara River is celebrated for its scenic landscapes and recreational opportunities, while the Loup River is known for micro ecosystems and irrigation. However, none of these rivers can claim the title of being the longest in Nebraska.