Juneau gold belt nearby Admiralty Island, was conducted, concentrating on ore deposits and economic geology. The 1986 study by the Bureau of Mines concentrated on the mineral resources of the northern region of southeast Alaska, specifically covering the Juneau gold belt. Aside from information on geological formations of the area, data related to mining was also examined. The Juneau gold belt comprises a section of the Juneau Mining District, the other sections being Glacier Bay/Mt. Fairweather, the volcanic area of West Lynn Canal/Haines/Porcupine, and the Molybdenite area. The northern part of the belt, the Eagle River region, extends northwestward from Salmon Creek to
Juneau mining district Inlet to Holkam Bay. French Canadian prospector Pierre Erussard, known as "French Pete," found gold on Douglas Island, across Gastineau Channel from Juneau. A consortium led by John Treadwell, a carpenter from California, purchased the claims and adjoining gold-bearing land. The resulting mine/mill complex produced more than 3 million troy ounces (93 tonnes) of gold before closing in 1922. The underground Kensington hardrock mine is approximately north of Juneau. The mine site is within the City and Borough of Juneau and the Tongass National Forest. Development and ore production occurred at the Kensington mine site from 1897 through 1938. The