Alger Underwater Preserve
| Alger Underwater Preserve | |
|---|---|
| Location | Lake Superior, Alger County, Michigan USA |
| Nearest city | Munising, Michigan |
| Coordinates | 46°30′14″N 86°33′32″W / 46.504°N 86.559°W |
| Governing body | Michigan Department of Natural Resources |
The Alger Underwater Preserve is a preservation area in the U.S. state of Michigan. Located in Lake Superior, it protects waters that lie offshore the Pictured Rocks National Lakeshore and the Grand Island National Recreation Area.