Lakes / New York / Allegheny Reservoir
Allegheny Reservoir, New York
12,222 acres
Surface Area
1,329 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - New York
41.94 degrees N, 78.93 degrees W - Cattaraugus County. State and county outlines drawn from Census boundary data; the lake marker is placed by its New York State DEC coordinates, not by eye. Schematic - not a survey map.
How Allegheny Reservoir Stacks Up
- Ranks #10 for surface area among the New York lakes counted so far - 12,222 acres.
- The largest lake in Cattaraugus County among those counted.
- About 65 miles from Buffalo, as the crow flies.
Facts and Figures
Waterbody ID112383507
CountyCattaraugus
Target Species (NYS DEC Recommended Fishing)Walleye, Northern Pike, Smallmouth Bass, Yellow Perch, Carp, Muskell Salmonunge
Coordinates41.9440, -78.9320
Deepest Natural Lakes in New York
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Seneca Lake | Ontario, Yates, Seneca, Schuyler | 43,343 acres | 618 ft |
| 2 | Cayuga Lake | Cayuga | 42,956 acres | 435 ft |
| 3 | Skaneateles Lake | Onondaga, Cortland, Cayuga | 8,960 acres | 300 ft |
| 4 | Canandaigua Lake | Ontario, Yates | 10,558 acres | 276 ft |
| 5 | Lake George | Essex, Warren | 28,451 acres | 187 ft |
Largest Lakes in New York
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Erie | Erie | 6,360,010 acres | - |
| 2 | Lake Ontario | Jefferson | 4,656,925 acres | - |
| 3 | Lake Champlain | Washington | 277,117 acres | - |
| 4 | Oneida Lake | Oswego | 51,324 acres | - |
| 5 | Seneca Lake | Ontario, Yates, Seneca, Schuyler | 43,343 acres | 618 ft |
Sources: USGS National Hydrography Dataset via NYS GIS lake data (ID 112383507). Verified October 30, 2026.