The Golden Triangle of Sonora, Mexico
May 2001 by Edgar B. Heylmun, PhDThe “Golden Triangle” dry placer district in Sonora, Mexico, lies some 80 to 100 miles south of the border. It is in desert terrain at elevations between 1,900 and 2,300 feet above sea level.
• Can’t get no satisfaction...from the government
• Working for Uncle Sam...
As decade-high gold and silver prices spark a renewed interest in mining in the West, there are few mining education programs and fewer students earning mining engineering degrees due to two decades of decline in the US mining industry.
Strange things do indeed occur. Here we were in western Nevada’s Walker Lake District, normally one of the driest areas for mining operations in America, and we couldn’t access a sizeable portion of Gryphon Gold’s project areas due to...
A crater in an undersea volcano off Japan may contain the world's largest gold nugget ever found...
There is a sizable area that straddles the U.S.-Mexico border where native silver occurs in shear zones at relatively shallow depths. The district is in the low but rugged Pajarito Mountains, the highest point of which is 5,838 feet at Cerro Ruido, on the Mexican side. The deceptively rough terrain forced the first border surveyors, in 1855, to kill several mules and horses because of their injuries.
I particularly enjoyed this little expedition. It is always nice to get out and spend time with my father, Bud Herschbach. He has taken a liking to Mills Creek and was anxious to return and look for more nuggets.
The Bawl Mill • Original Sixteen to One Goes to Court—Challenges MSHA Citations Part II • Using Legal Subdivision • Placer vs. Lode Gold • Gold Tellurides: Tellurium, an Assay Impurity • Court Hears Arguments Over Rights to Shipwreck • Picks & Pans: How to Succeed in a Small Mine, A Case History: 1990-2000 • Charcoal Crucible Recipe • Discovery of the Mountain Pass REO Deposit • Romance of the Old Silver King • Record-Breaking Alaskan Nugget for Sale • Company Notes • Nevada Gold Production Up Despite Lower Prices • Gold in Guatemala • Bush Taps Utah Resident for Labor Post • Looking Back • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Honda Pares Down Use of Precious Metals in Autos