Hamlin Lake
General data
- Name: Hamlin Lake
- Water system: St. Lawrence River
- Water type: Artificial lake
- Progression: Big Sable 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: Continental
- Continents: North America
- Countries: United States of America
Hamlin Lake is a man-made lake in Michigan enlarged by the backup of the Big Sable River by the Hamlin Lake Dam before it reaches Lake Michigan. The lake, which covers 5,350 acres (21.7 km2) or 4,990 acres (20.2 km2), is 12 miles (19 km) long and 2 miles (3.2 km) wide. It is the largest man-made lake in Michigan. It has two sections, the upper and lower lakes, which are separated by the narrows. The western section has a maximum depth of almost 80 feet (24 m) while the eastern section is only 34 feet (10 m) The first dam was built in the 1850s for a sawmill. Ludington State Park lies along the entire western shore of the lake while the eastern tip of the lake is in the Manistee National Forest.
During the winter season, ice fishing is popular. Gamefish have been stocked in the lake since the 1890s.