The Alaska-Gastineau Mine was a gold mine in Perseverance, about 4 miles (6.4 km) east of Juneau, Alaska, USA. It was briefly the largest gold mine in the world. The mine was operated by the Alaska-Gastineau Mining Company.

The City and Borough of Juneau, more commonly known simply as Juneau, is the capital city of the U.S. state of Alaska, located in the Gastineau Channel and the Alaskan panhandle. Juneau was named the capital of Alaska in 1906, when the government of what was then the District of Alaska was moved from Sitka as dictated by the U.S. Congress in 1900. On July 1, 1970, the City of Juneau merged with the City of Douglas and the surrounding Greater Juneau Borough to form the current consolidated city-borough, which ranks as the second-largest municipality in the United States by area and is larger than both Rhode Island and Delaware.