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History & Geology

Gold Deposition and Gradients of Placer Streams—Part I

When placer miners from the gold rush era began experimenting with the slope of their sluices, they must have pondered the ideal slope for trapping gold in a creek bed too. Logic suggests the same is true for streams...

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"Gold Rush: Alaska" in the Porcupine Mining District


Honestly, I don’t believe it is likely there would be a glory hole where they described one at the bottom of the waterfall because plunging water with enough energy to scour out a large hole in bedrock would have the scouring ability to grind up and...

Placer Mining At Chititu Creek, Alaska


There is reason to believe these stream valleys are still rich with gold, silver and copper.

Northwestern Alaska Mineral Resources


Gold and jade are actually only minor mineral resources for the Northwestern Alaska region as a whole. Modern prospecting has focused more on base metal than precious metal resources.

When Legends Were Made and Fortunes Found


Sylvester Smith and his younger brother Nathan were among this group who rode and led their Indian ponies, while climbing the rugged Salmon River breaks and rockhewn mountains, looking for a path that would lead them up and over the uncharted wilderness.

Copper Deposits of Alaska


Only the famous Kennecott copper mine was able to continue operating through the Depression owing to the exceptional richness of its ore.

The Goldfield Mining District -- Then and Now


In 1983, some of the ore yielded more than 2,500 ounces of gold within 30 feet of the surface. The shoot pinched to a narrow vein.

Associated Gold Placers of the Comstock


What many people don’t realize is that the Comstock Lode produced over 8,000,000 ounces of gold…

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