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698 miles

Cimarron River

The Cimarron runs across New Mexico, Oklahoma, Colorado and Kansas. Much of its length is in Oklahoma, and no major cities lie along it.

N50 mi
Course of the river, simplified. Map data © OpenStreetMap contributors.
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River facts

Length698 miles
SourceJohnson Mesa, northeastern New Mexico
MouthArkansas River at Keystone Reservoir

Its only impoundment is Keystone Reservoir, where it joins the Arkansas River west of Tulsa.

Listed fish are the species named for the river on its Wikipedia page. Check the Oklahoma Department of Wildlife Conservation for river-specific regulations before you fish.

Lakes and flowages on the Cimarron River

Lakes in our guide on or connected to this river:

Source: Cimarron River (Wikipedia)

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View on interactive map

Zoom and pan on a street, satellite or terrain map to follow the river past roads and towns. Red pins are boat ramps and launches. Tap a pin for directions.