Washington County, New York is part of the Great Appalachian Valley (also known simply as the 'Great Valley') which is a long narrow valley strip often between tall mountain ranges. The county transitions from the Taconic Mountains to the Adirondack Mountains, and from the Lake Champlain Valley to Hudson River Valley. Much of the county is part of the slate valley of the Upper Taconic Mountains (Taghkanic, meaning 'in the trees'). The eastern boundary of Washington County is the New York–Vermont border, part of which is Lake Champlain. This is also the border with New England proper. The northern end of the county is
Lawrence, St. Lawrence County, New York Lawrence, St. Lawrence County, New York Lawrence is a town in St. Lawrence County, New York in the United States. The population was 1,826 at the 2010 census. The town is named after William Lawrence, an early land owner. The Town of Lawrence is on the eastern border of the county and is east of Potsdam. Settlers began arriving in the region shortly after 1800, but many left permanently during the War of 1812. A state road constructed through the region in 1827 helped renew settlement of Lawrence. The town was formed in 1828 from parts of the Towns of