These websites list many collecting localities, rock hounding news and information, and scenic geologic features:
Feb 10, 2010· Arizona has primary lode gold deposits, some placer gold deposits and many copper deposits that produce by-product gold and silver. Hidden gold deposits ...
An index to articles on gold geology, mining, prospecting, history, and tools.
Gold mining is the resource extraction of gold by mining. As of 2016, the world's largest gold producer was China with 463.7 tonnes. The second-largest producer ...
Iron ore is a chemical sedimentary rock that people have used as an important source of metal.
BLM Oregon/Washington. BLM is a valued and relevant partner with our communities in creating a sustainable future for our public lands in Oregon and Washington.
New Uranium Mining Projects Utah, USA (last updated 15 Dec 2017)
Gold is the most malleable of all metals; a single gram can be beaten into a sheet of 1 square meter, and an avoirdupois ounce into 300 square feet.
How to find gold and where to find gold in placer and hard rock mines
A small piece of the wall of a pocket in a large quartz vein. Small slightly smoky rock crystals have grown in random orientations on the milky gray vein quartz.
Big Rock Candy Mountain was created when ancient volcanoes erupted, leaving colorful mineral deposits.