Lake Margrethe
General data
- Name: Lake Margrethe
- Water system: St. Lawrence River
- Water type: Natural lake
- Progression: Portage Creek -> Manistee 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
Lake Margrethe is near Grayling in Crawford County, Michigan. Its area is 1,920 acres (780 ha). It was formerly known as Portage Lake. Fish species include: rock bass, yellow perch, bluegill, smallmouth bass, largemouth bass, northern pike, tiger muskie, and walleye.
Portions of the Lake are within Camp Grayling. It is a favorite fishing and recreation lake for soldiers in their off-duty hours.