Conrey Dredge No. 4

November 2017 by Don Madore

The large buckets were favorable for the type of ground worked. The gravel was tenacious and compact, due to the existence of irregular pockets of clay.

Liberty and the Phoenix Mine

June 2013
Liberty, Washington is located in the mountains near Yakima and Ellensburg. There is nothing much in Liberty except for about 20 houses on patented mining claims and a lot of dry holes.

Critical Metals: Copper

May 2012
From time to time I’ve been doing a series on critical metals and how important they are to our complex and technological society. This month we are going to take a look at copper, and how important that metal is to our modern lives.

Prospecting With The Help of Fluvial Geomorphology

March 2011
Quiz yourself about the stream in figure 5. Based on your previous knowledge of where gold is found in a stream and in this article, where do you think you will find the most gold?

Glaciers and Placer Gold Deposits

November 2016
It also happens sometimes that glaciers will bury valuable placer deposits. This occurs when the glacier goes over the top of an existing placer deposit.

Gold of the Iditarod Mining District, Alaska

March 2014
It was the middle of winter and the valley was covered in snow, making prospecting a matter of sinking shafts in the ground.

Prospecting for Pegmatites

July 2015

…in some cases pegmatites have produced individual mineral crystals that are enormous, attaining lengths of over 40 feet long, and many of the world’s largest mineral crystals are examples that were found within pegmatite deposits.

Conrey Dredge No. 4—Part II

December 2017

These were the men who periodically picked up the gold amalgam from the tables and sluices in the dredge, processed it, and transported the gold ingots to the railroad express office in Alder. Their trustworthiness must have commanded a prominent wage.

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