MAKE A MEME View Large Image Douglas Island gold mines.PNG en Douglas Island gold mines 1906-01-01 USGS Bulletin 287 The Juneau Gold Belt Alaska Arthur C Spencer other versions PD-USGov Douglas Island Old maps of Alaska Gold mines Gold mining in Alaska Treadwell Mines ...
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Keywords: Douglas Island gold mines.PNG en Douglas Island gold mines 1906-01-01 USGS Bulletin 287 The Juneau Gold Belt Alaska Arthur C Spencer other versions PD-USGov Douglas Island Old maps of Alaska Gold mines Gold mining in Alaska Treadwell Mines The Juneau Gold Belt Alaska USGS Bulletin 287 1906
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