Carleton Place is a town in Eastern Ontario, Canada, in Lanark County, about 46 kilometres (29 mi) west of downtown Ottawa. It is located at the crossroads of Highway 15 and Highway 7, halfway between the towns of Perth, Almonte, Smiths Falls, and the nation's capital, Ottawa. Canada's Mississippi River, a tributary of the Ottawa River flows through the town. Mississippi Lake is just upstream by boat, as well as by car.