| Lake Gratiot | |
|---|---|
  Lake Gratiot Location within Michigan  Lake Gratiot Location within the United States | |
| Location | Eagle Harbor Township and Grant Township, Keweenaw County, Michigan |
| Coordinates | 47°21′19″N 88°07′37″W / 47.3552026°N 88.1268111°W |
| Little Gratiot River | |
Surface area | 1,438 acres (582 ha) |
| Max. depth | 70 feet (21 m) |
Surface elevation | 741 feet (226 m) |
Lake Gratiot (/ˈɡræʃɪt/ GRASH-it) is a 1,438-acre (582 ha) lake in Keweenaw County, Michigan. The lake is surrounded by dense forest of the Keweenaw Peninsula. The bottom is mainly muck and it has a maximum depth of 70 feet (21 m). The lake flows through the Little Gratiot River into Lac La Belle and then into Lake Superior.
