Every named reservoir in the Adirondack Park — flood-control basins, drinking-water sources, and the impoundments anchoring the southern watersheds.
Allen Falls Reservoir is an 82-acre impoundment in the Tupper Lake region — working infrastructure rather than wilderness destination, part of the hydroelectric system that shaped settlement patterns across the northwest Adirondacks. The reservoir sits off the recreational radar: no formal access points, no stocking records in the DEC database, no trails listed in the standard guides. It's the kind of water that shows up on property maps and USGS quads but rarely in trip reports — a gap in the public-access network that defines much of the private timberland between Tupper and the Five Ponds. If you're plotting a paddle route or bushwhack in the area, confirm landowner permission before assuming access.