Browse Map

Explore away

Explore Map Collection

Check out our basemaps

Print a Map Plus

Generate a high-quality PDF

Field Guide

Discover local flora, fauna, geology, and more

Local Flora & Fauna

Learn the ecology of your area

Local Geology

Learn the geologic formation at your feet

Get Started or Sign In

Welcome

Continue with Apple

Already have an account? Sign In

Measure

Topo

Ecoregions

Public Lands

...

BASEMAPS

Default Weather

Temperature

Smoke

...

WEATHER

Foss Reservoir

Reservoir in Foss State Park, Great Plains, Washita National Wildlife Refuge near Butler, OK

Oklahoma Fishing Regulations

Print Map

Generate High-Quality PDF

On the Web

On Wikipedia

Foss Reservoir, also known as Foss Lake, lies in Custer County, Oklahoma on the Washita River, about 15 miles (24 km) west of Clinton, Oklahoma. The reservoir was constructed during 1958–1961 by the U. S. Bureau of Reclamation. The project was known originally as the Washita Basin Project. The lake and dam were named for the community of Foss, Oklahoma, about 6 miles (9.7 km) south of the site. The primary purposes are to regulate flow of the river and to provide water for the cities of Bessie, Clinton, Cordell and Hobart. It is western Oklahoma's largest lake and lies entirely within Foss State Park. The reservoir has a surface area of 8,800 acres (3,600 ha) and a shoreline of 63 miles (101 km). The capacity of the reservoir is 436,812 acre-feet. Dam construction began in October, 1958.…

Read More on Wikipedia