List of U.S. county name etymologies (N–R)

This is a list of U.S. county name etymologies, covering the letters N to R. Named for the natron (soda) deposits in the county.

Chiwere word ñí-máha 'murky water.'

Chiwere word ñí-máha 'murky water.'

Omaha–Ponca languageIndian 'spreading water river.'

for John W. Noble, Secretary of the Interior