| East Branch Reservoir | |
|---|---|
 | |
  East Branch Reservoir  East Branch Reservoir | |
| Location | Putnam County, New York |
| Coordinates | 41°23′49″N 73°35′28″W / 41.397039°N 73.591238°W |
| Type | reservoir |
| Primary inflows | East branch of the Croton River |
| Catchment area | 75 sq mi (190 km2) |
| Basin countries | United States |
| Surface area | 525 acres (2.12 km2) |
| Average depth | 32 ft (9.8 m) |
East Branch Reservoir, is a reservoir in the town of Southeast, New York, near the village of Brewster. Part of the New York City water supply system, it was formed by impounding the East Branch of the Croton River. Forming part of the Croton Watershed, it was placed into service in 1891, and lies some 35 miles (56 km) north of the city, in the southeast corner of Putnam County.