The Davis Run Loop Trail at Keystone State Park, Pennsylvania, is a moderate 3 mile hike that starts on the northeastern side of Keystone Lake and runs toward the eastern corner of the park before looping back.
The trail starts out by heading toward the wetland area of Keystone Lake before heading uphill and winding through deciduous trees and some small patches of evergreens and pines.
Follow the yellow blazes and check your map often since there are various ways you can hike on this loop. There are a few connector trails that run between the main loop, so either stay left or stay right on the loop. There are some signs along the trail that you can follow back to the trailhead, but note that almost all trails at Keystone State Park use yellow blazes.
Dogs allowed, but no biking on the trails at Keystone. Parking can be found directly across the street at the main parking lot.