How California Became the Golden State
August 2010 by Chris RalphOn the morning of the 19th of January, 1848, Marshall went out to examine the cut and inspect the progress that had been made overnight.
Laccoliths are unusual igneous features that seem to occur in the stable interior parts of continents. They are concordant igneous intrusions that have domed the overlying rocks and are circular in plan, and less than 10 miles in diameter. This article deals with some of the laccoliths found in the scenic Colorado Plateau province of Utah, Colorado, and Arizona...
We asked several writers and professionals to recommend their favorite books or publications that they thought would benefit prospectors and miners. Each recommendation is followed by a rating of beginner, intermediate, or advanced prospector or miner, or a rating of “general” (for all levels).
• Funds eliminated for federal land acquisitions
• ANWR leasing
• GAO scolds Fish & Wildlife
• Red Rock wilderness proposed again
• BLM websites still down
• Karuk lawsuit update
June 18, 1955 — August 3, 1999
The gravels in contact with the bedrock or false bedrock base are often the richest. The same facts apply to the alluvial paystreaks that are formed on gravel bars; the lowest level of the gold-bearing gravel is normally the richest.
• ESA changes proposed
The following “clues” describing “hard rock gold ores,” while not 100% dependable, certainly will give gold prospectors an advantage:
The Bawl Mill • Legislative and Regulatory Update • Commercial Placer Mining With Jigs • Ask The Experts: Bench Top Crushers • Ask The Experts: How to remove precious metals from lead? • How to Properly Ground Balance to Find the Most Gold • Authorities Search for Lost Treasure Hunters • Alaska Geologist Survives Grizzly Attack • The Guaniamo Diamond Area, Venezuela—Part II • The Rocky Bar Mining District, Idaho • Mining Stock Quotes, Mineral & Metal Prices