(Mailley’s Mill, ~20', 32-36-c) across Black Rock Creek at Science & Education Center in Black Rock Forest S. of Cornwall, Cornwall Township, Orange County, NY. US9W S. (curves E.) 3.5 miles from jct with NY218 (Academy Av.) on the W. side of Cornwall, veer right (curves S.) on Reservoir Rd. 1.1 miles to the bridge on the W. side of the road. (N41 24.784 W74 00.681) Carlos Gonzalez 5-9-15.