Dutch Fork Lake is a 91-acre impoundment in western Washington County, Pennsylvania, characterized by its narrow shape and half-mile length. The lake is owned by the Pennsylvania Fish and Boat Commission and operates under specific boating regulations: only electric-powered and unpowered boats are permitted, with electric motors restricted to slow, no-wake speed.

A single boat launch ramp with associated parking facilities provides primary water access. Unpowered boats may be moored at designated areas from March 1 through November 30, provided they display current registration. All boats must either be registered or display a valid launch permit from the Fish and Boat Commission or PA Department of Conservation and Natural Resources.

The lake's setting is predominantly rural and wooded, surrounded by forests and farms. Created in 1958 by the Dutch Fork Dam, the waterbody tends toward turbidity due to silt and sediment from Dutch Fork Creek. The watershed is prone to flooding, which can bring debris into the lake. In 2004, flood damage required draining the lake, though it was repaired and refilled in 2013.

Wildlife observers may spot various fish species and birds around the lake. The Buffalo Creek Watershed Association has worked to improve the aquatic habitat, including adding stone and lumber structures to create artificial fish habitats about a decade ago.

Points of historical interest near the lake include Miller's Blockhouse to the north and Rice's Fort, both significant frontier-era structures. The lake's name reflects its German settler heritage, as "Dutch" historically referred to Germanic peoples in the region.

The lake is accessible via Lake Road off U.S. Route 40, approximately 13 miles west of Washington, PA. Innertubes and swim aids are explicitly prohibited on the lake. Currently, efforts are underway through the watershed association to improve recreational facilities, including boat launches, hiking trails, and picnic areas.