Several miners guide a dynamite trolley into the Alaska-Juneau gold mine in 1916. The A-J mine consumed as much as 80 cases of dynamite per day in the early 20th century and kept as many as 3,000 cases in stock, according to the Juneau Public Library's Web site, www.juneau.lib.ak.us. In 1925, A-J mine operators built a weather and fire-proof powder magazine building on a spur of the main haulage tramway between Tunnel No. 2 and Tunnel No. 3 to protect their vast quantity of explosives.
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