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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.

PRESS RELEASE, 2/12/2020 - Refilling of Donegal, Minsi Lakes Underway Following Dam Rehabilitation Projects


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