Niobrara
geographical name
Ni·o·brara
ˌnī-ə-ˈbrer-ə 
river 431 miles (694 kilometers) long in eastern Wyoming and northern Nebraska flowing east into the Missouri River
Cite this Entry
“Niobrara.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Niobrara. Accessed 31 Oct. 2025.
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