Clam Lake Canal
General data
- Name: Clam Lake Canal
- Water system: St. Lawrence River
- Water type: Canal
- Source: Lake Mitchell (Michigan)
- Progression: Lake Cadillac -> Clam River (Michigan) -> Muskegon River -> Lake Michigan -> Lake Huron -> St. Clair River -> Lake St. Clair (North America) -> Detroit River -> Lake Erie -> Niagara River -> Lake Ontario -> St. Lawrence River -> Gulf of St. Lawrence -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
The Clam Lake Canal (sometimes called the Cadillac Canal) is a man-made canal between Lake Mitchell and Lake Cadillac in Cadillac, Michigan made by George A. Mitchell in the 1870s. The purpose of the canal was to facilitate the movement of logs to sawmills.
The canal displays an unusual water phenomenon; it is frozen over in the first part of the winter when the lakes on each side of it are unfrozen. Then when the adjacent lakes freeze, the canal remains unfrozen.