ICMJ Visits Colfax, California

February 2023

Exploring A Historic Lode Mine

August 2016
Climbing up the debris, I pointed my flashlight up a shaft ascending straight up as far as my light would shine. It was the stope of the pay shoot leading to the old tunnel above!

Prospecting for Diamonds in Kimberlite

January 2014
Kimberlite is very difficult for geologists to find, let alone prospectors and rock hounds. This is because kimberlite is rarely exposed on the surface and few people know how to identify the rock.

The Ups and Downs of Geologic Faults

May 2011
Faults are fractures, breaks and broken zones in the Earth’s crust where one side of the break has moved relative to the other, and they come in many different varieties.

Placer Mining At Chititu Creek, Alaska

March 2015
There is reason to believe these stream valleys are still rich with gold, silver and copper.

All About Pyrite

January 2015
Most prospectors learn early that pyrite is fool's gold...but the truth is it can be an excellent indicator mineral for gold and in many cases does contain small amounts of gold.

Northwestern Alaska Mineral Resources

February 2016
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.

Quartz: The Indicator of Gold

August 2022

Quartz: The Indicator of Gold

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