| Torch Lake | |
| Coords: | 47.1583°N -88.425°W |
| Basin Countries: | United States |
| Length: | 6 mi (9.7 km) |
| Width: | 1.5 mi (2.4 km) |
| Area: | 2659acres |
| Max-Depth: | 1200NaN0 |
| Pushpin Map: | Michigan |
| Pushpin Map Alt: | Location of the lake in Michigan. |
Torch Lake is an approximately 2700acres lake lying mostly within Torch Lake Township with portions within Osceola and Schoolcraft townships in Houghton County in the U.S. state of Michigan. The lake is fed by the Traprock River.
The village of Lake Linden at the north end of the lake was once the site of the largest copper milling operation in North America. About 200e6ST of copper mill stamp sands were dumped into Torch Lake itself, filling about 20 percent of the lake's volume. The Environmental Protection Agency believes the contaminated sediments to be 70feet thick in some areas, and surface sediments contain up to 2,000 parts per million (ppm) of copper.
The lake is about 5miles east-northeast of Houghton and is approximately 6miles long and NaNmiles wide at 47.15°N -113°W. The lake has a total surface area of 2659acres, and a maximum depth of 120feet. A channel drains from the lake south into Torch Bay, which opens into Portage Lake.