From the Hammond Pond Parking Area on Moriah Road (4 miles east of US 9), head south on the Berrymill Flow Trail. The flow is roughly 1 1/2 miles south of the parking area, with only a very slight incline. Head south-east on the Mouse Mountain Pond Trail another 1 1/2 miles to reach the lake which contains a lean-to on the north shore. Slight incline, gaining 200 feet before dropping over a ridge to the pond.

https://andyarthur.org/hammond-pond
https://www.dec.ny.gov/lands/109807.html