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Located in Westmoreland County, Donegal Lake (formerly Fourmile Run Dam) is a 90-acre impoundment owned by the Commonwealth of Pennsylvania and managed by the Fish and Boat Commission for public fishing and boating.

NOTICE: Donegal Lake is currently closed to public use. But the property around the lake will remain open to recreation use, such as walking and running. [more]


The Commission historically stocked the lake with Muskellunge, Walleye and Channel Catfish.


Boating is limited to boats powered by electric motors and un-powered boats. Two launch ramps are available along with associated parking facilities.

Un-powered boats may be moored at the lake in accordance with Commission property regulations. To be used at the lake, boats must be registered or have a valid launch permit (permits are issued by the Commission or PA Dept. of Conservation and Natural Resources).

General Information Related to PFBC Lakes