Keweenaw Land Association, Limited engages in the exploration and evaluation of mineral assets. As of December 31, 2021, it had 428,789 acres of subsurface mineral rights located in the western Upper Peninsula of Michigan and northern Wisconsin. The company also leases commercial properties and mineral assets, as well as offers gravel, hunting, and recreational leasing services. The company was founded in 1865 and is headquartered in Ironwood, Michigan.