Lake Donegal #1 Boat Ramp provides access to Donegal Lake (formerly Fourmile Run Dam), a 90-acre impoundment in Westmoreland County with two launch ramps and associated parking facilities.

Boating is restricted to unpowered boats and electric motor-powered boats operating at slow, no wake speed. All boats with motors must be registered, and overnight mooring of unpowered boats is permitted from March 1 through November 30 for registered vessels.