| Delaware Mine | |
| Width: | 200px |
| Pushpin Map: | Michigan#USA |
| Coordinates: | 47.4243°N -88.0987°W |
| Place: | Delaware |
| Subdivision Type: | State |
| State/Province: | Michigan |
| Country: | United States |
| Products: | Copper |
| Type: | Underground |
| Greatest Depth: | 1400feet |
The Delaware Mine is located off U.S. Highway 41, in Grant Township, Keweenaw County, south of Copper Harbor, Michigan and is a Keweenaw Heritage Site.[1] [2] The Delaware Copper Mine provides tours of one of the oldest copper mines in the Keweenaw,[2] dating back to 1847. The mine had five shafts, with the deepest reaching . The mine is open June through October and offers guided and self-guided tours.[3]