New York /
Dunham Reservoir
Reservoir in New York · 102 acres · near Grafton, Sand Lake
Dunham Reservoir has 1 boat ramp and 1 carry-in launch listed as public.
Past algal blooms
Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2025 and 2026.
state reports compiled by U.S. EPA · checked October 18, 2026
Launches
- Dunham Reservoir Boat Launch · Boat ramp · near Sand Lake
- Dunham Reservoir Carry-in Access · Carry-in (canoe and kayak) · near Grafton