Gold in Oregon
May 2002 by Edgar B. Heylmun, PhDAt least 6 million ounces of gold have been produced in Oregon since 1859. Since there are no accurate records of production prior to 1904, it is obvious that total gold production was considerably higher than that which has been recorded.
Estimating the gold content of ores with gold, quartz and other minerals?
Ireland-based Conroy Diamonds and Gold announced they have found what may be the largest gold deposit to date in Britain or Ireland.
• USFS Draft Reclamation Bond Guide needs your comments
• Colorado seeks ownership of rights of way
• Comments needed for Sierra Nevada EIS
• Roadless rule to stand, with a few changes
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.
To say that the international environmental community took exception to President Trump’s decision to remove America from the 2016 Paris Accord would be an understatement of enormous proportions.
• IBLA rules against miner for "late" filing
• Wyoming appeals roadless decision
• Mercury reduction program slated for California
• Oregon wilderness
• Oregon miner prevails in lawsuit against Forest Service and District Ranger
• Canada pulls out of Kyoto Climate Treaty
The Bawl Mill • Our Readers Say • California Wilderness Coalition and The Nature Conservancy Recruit Government Employees to Carry Out Huge Land Grab • Drywashing Rules Clarified • Mineralized Calderas in Colorado • The Keystone Gold-Copper District, Medicine Bow Mountains, Southeastern Wyoming • Picks & Pans: Mining Tungsten Ore—A Case History • Aussie Gold—A Look at the Northern Territory • The Phoenix Gold Mine: A Brief History • Calico Mine • Mining Stock Quotes and Mineral & Metal Prices • Looking Back • Melman on Gold & Silver