Juneau gold belt only slightly different would be valueless." In 1895, southeastern Alaska was the first part of the Territory of Alaska to have its mineral resources researched by the U.S. Geological Survey. It surveyed the gold deposit areas of Juneau and Sitka. Systematic surveying began in 1902 which included a topographic map of the gold-bearing area adjacent to Juneau. In the following year, a detailed map of the Juneau region's geology was mapped in detail. A reconnaissance of almost the entire Juneau gold belt was carried out from Port Houghton to the boundary with Canada; in 1904, another reconnaissance, this time of
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