Treadwell Mine

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Two of the Juneau area's most successful historic mines were the Alaska-Juneau Mine, on the side of Mt Roberts, and the Treadwell Mine, across Gastineau Channel near Douglas. The Treadwell Mine closed in 1922 after a 1917 cave-in caused the company's financial collapse. During its heyday at the turn of the 20th century, the Treadwell made Douglas the channel's major city, with a population of 15,000.

For more information about these mines and what you can see of them today, stop by the Juneau-Douglas City Museum.