A river that flows for 600 miles (1,000 km) from New Mexico across Oklahoma to the Arkansas River near Tulsa. The western part of Oklahoma's panhandle was once known as the Territory of Cimarron.
Definition of Cimarron River in US English:
Cimarron River
proper noun-ˌrōn
A river that flows for 600 miles (1,000 km) from New Mexico across Oklahoma to the Arkansas River near Tulsa. The western part of Oklahoma's panhandle was once known as the Territory of Cimarron.