Kildoo Falls is an 18-foot plunge on Kildoo Run in McConnells Mill State Park, Lawrence County, Pennsylvania. The World Waterfall Database marks the feature Unconfirmed, with Crescent Falls as an alternate name.
The falls
Kildoo Run drops in a single segmented plunge measured at 18 feet, with one drop counted. MyHikes estimates the drop at closer to 10 feet, but the survey figure is used here.
Getting there
Pennsylvania DCNR manages McConnells Mill State Park, which is open sunrise to sunset year-round. The Kildoo Trail is a 3-mile loop that begins at either end of the park's covered bridge; its easier east-bank leg reaches the falls. The trail is rated more difficult and marked with yellow and blue blazes, with non-flush restrooms and benches at the trailhead.
On site
Gorge trails in the park are rugged, and hikers are told to stay on the trail. A 2026 guided park hike found the route to the falls steep, rocky and uneven, and unsuitable for young children. Swimming rules, dog policy and any incident history at the falls are not documented.
Nearby
Alpha Falls is about 0.7 mile away, Breackneck Falls about 1 mile, and Muddy Creek Falls about 2 miles.
Distances are straight-line.