Arlington Mill Reservoir, known locally as Arlington Pond, is a 269-acre (109 ha) impoundment located in Rockingham County in southern New Hampshire, United States, in the town of Salem. It is located along the Spicket River, a small stream that flows south to the Merrimack River in Lawrence, Massachusetts. The lake is classified as a warmwater fishery, with observed species including smallmouth bass, largemouth bass, chain pickerel, horned pout, white perch, black crappie, and bluegill. There is no public boat access.