Delta Reservoir, also known as Delta Lake, is a reservoir located in Oneida County, New York, United States. It was formed by the impoundment of the Mohawk River. Most of the lake is within the southwest part of the Town of Western, north of Rome. The western part of the lake is in the Town of Lee.
Delta Lake State Park is located on a peninsula extending from the south shore of the lake.
The reservoir also offers great fishing. Fish species that are present in the reservoir are walleye, smallmouth bass, northern pike, chain pickerel, rock bass, pumpkinseed sunfish, brown bullhead, yellow perch, brown trout, and common carp. There is a state owned access with two concrete ramps on the east shore in the state park off NY 46, five miles north of Rome. There is parking for 70 trucks and trailers. There is also a marina on the lake.
