Bash Bish Falls State Park is a Massachusetts state park located in the town of Mount Washington. The park is named after Bash Bish Falls, Massachusetts' highest single-drop waterfall, which lies within its borders. The park is managed by the Department of Conservation and Recreation and is one of several nature preserves in the extreme southwestern corner of Massachusetts noted for their scenery. It is adjacent to the Mount Everett State Reservation and the 4,000-acre (1,600 ha) Mount Washington State Forest, as well as New York's 5,000-acre (2,000 ha) Taconic State Park.