All Articles
Prospectors Beat Mining Claim Tax
February 2007 by Dr. Ralph E. Pray
Early in 2006, two prospectors, joint owners of unpermitted mining claims in San Bernardino County, California, were confronted by the County Tax Collector with stiff taxes amounting to hundreds of dollars for the “possessory right” to own mining claims in that county.Additional articles that might interest you...
Calcite and Limestone
February 2017
The other distinguishing feature of calcite has to do with its chemistry. Geologists sometimes take a small bottle of dilute hydrochloric acid out into the field with them because calcite reacts with acids to make a bubbly foam.

Arizona's Vulture Gold Mine and Lost Dutchman
May 2012
When prospectors and treasure hunters talk of gold in Arizona, it is the Lost Dutchman or Vulture mine they usually think of. The Lost Dutchman gold mine is just that—a myth chalked full of holes that has been embellished over time as any good legend should be.
When prospectors and treasure hunters talk of gold in Arizona, it is the Lost Dutchman or Vulture mine they usually think of. The Lost Dutchman gold mine is just that—a myth chalked full of holes that has been embellished over time as any good legend should be.
The Joy of Prospecting
February 2004
I have been prospecting and mining for gold, both as a hobby and as an occupation, for nearly 30 years. From the deep green forests to the rolling sagebrush hills, few people see as much of America’s wide-open spaces as I do.

Colorado Disputes Key Part of EPA Mine Report
December 2015
King’s letter is a blow to the EPA’s contention that outside technical experts supported its plan to push a drainage pipe through debris covering the entrance to the Gold King Mine…
King’s letter is a blow to the EPA’s contention that outside technical experts supported its plan to push a drainage pipe through debris covering the entrance to the Gold King Mine…
The Ocampo District, Chihuahua
April 2003
The village of Ocampo is wedged in a canyon about 178 miles, by Mexican Highway 16, west of the city of Chihuahua. It is a few miles west of Basaseachic Falls, and a few miles south of Highway 16, in high chaparral at an elevation of 6,500 feet. The completion of Highway 16 across the Sierra Madre Occidental greatly improved access to the region...
The village of Ocampo is wedged in a canyon about 178 miles, by Mexican Highway 16, west of the city of Chihuahua. It is a few miles west of Basaseachic Falls, and a few miles south of Highway 16, in high chaparral at an elevation of 6,500 feet. The completion of Highway 16 across the Sierra Madre Occidental greatly improved access to the region...
Understanding Hard Rock Mining: Terms and Methods—Part II
July 2004
A better understanding of hard rock mining methods and knowing a little about how these mines work can help the individual prospector to understand reports and stories about both modern and historic mine operations.

Subscription Required:
The Bawl Mill
• In Pursuit of Gold and Silver in the Sierra Madres—Establishing a Mining Company in Mexico
• Update On “Special Rock” Kicking
• Michigan DEQ Gives Tentative OK to Nickel, Copper Mine
• Saved Before the Tax Bell Tolled
• The Petersville—Yentna Goldfields
• Demand for Copper Boosts Zambian Mining
• Doc Livingston
• Bum Luck
• San Manuel Mine Officially Closes With a Bang
• Environmentalists Target Pebble Mine
• Detecting in Australia's Pilbara Region
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back