Ashley Falls is roughly 40 feet high and consists of a 15-foot upper plunge fall and a lower cascade containing much talus, some of respectable size. (Catskill Region Waterfall Guide by Russell Dunn)
Ashley Falls is reached by an easy 1/4 mile walk. During the winter months the Campground is closed and so is the roadway to vehicle traffic. The walk is then expanded an extra 3/4 mile on easy pavement.
The trailhead for the Mary’s Glen Trail (the trail which is used to reach Ashley Falls) is located in the North-South Lake State Campground (open May-October, day use fee charged). Turn onto North Lake Road (Greene County Rt. 18) from NY 23A near Haines Falls. This point is 1.3 miles further west of the parking area for the Kaaterskill Falls trail. From this intersection, drive 3.2 miles to the trailhead for the Mary’s Glen Trail, on the left. Parking is just ahead on the left.
The trail goes north from the trailhead, following the west side of Ashley Creek on the level for 0.2 miles, about five minutes, to a junction. Go right on the spur trail to the base of Ashley Falls. This hike starts out a little rough-on a cobbled streambed. The short easy hike takes you through a lovely wooded glen alongside a beaver meadow to the base of a heavily forested cascade known as Ashley Falls. The place name, Mary’s Glen, remembers Mary Scribner, whose husband Ira once operated a sawmill on the creek.
Warning: The Catskills can be a deadly place. Only follow marked trails by New York State or the DEC. Wear proper shoes.