In 1947, Dr. J. Williams and Moses staked 11 claims, which became the Lake Superior Mining Corporation.

However, not much development took place until 1979, when Don and David McKinnon, along with John Larche, staked claims in Hemlo and the Manitouwadge area.

The Williams Mine started operation in 1985, and produced 445,320 ounces of gold from a 2.45 meter wide ore body.

The Golden Giant Mine produced 446,858 ounces in 1994 from a quartz sericite schist host rock.

Via Rail's The Canadian serves the Unorganized Thunder District at the communities of Flindt Landing,[6] Mud River,[7] Ferland,[8] and Auden.