In geology, a lode is a deposit of metalliferous ore that fills or is embedded in a fissure in a rock formation or a vein of ore that is deposited or embedded between layers of rock. The current meaning dates from the 17th century, being an expansion of an earlier sense of a "channel, watercourse" in late Middle English, which in turn is from the 11th-century meaning of lode as a ‘course, way’.
Pioche is an unincorporated town in Lincoln County, Nevada, United States, approximately 180 miles (290 km) northeast of Las Vegas. U.S. Route 93 is the main route to Pioche and bypasses the town center just to the east, with Nevada State Route 321 and Nevada State Route 322 providing direct access. Its elevation is 6,060 feet (1,850 m) above sea level. Pioche is the county seat of Lincoln County. Pioche is named after François Louis Alfred Pioche, a San Francisco financier and land speculator originally from France. The town's population was 1,002 at the 2010 census.
Rhyolite is a ghost town in Nye County, in the U.S. state of Nevada. It is in the Bullfrog Hills, about 120 miles (190 km) northwest of Las Vegas, near the eastern boundary of Death Valley National Park. The town began in early 1905 as one of several mining camps that sprang up after a prospecting discovery in the surrounding hills. During an ensuing gold rush, thousands of gold-seekers, developers, miners and service providers flocked to the Bullfrog Mining District. Many settled in Rhyolite, which lay in a sheltered desert basin near the region's biggest producer, the Montgomery Shoshone Mine.
Hamilton is an abandoned mining town located in the White Pine Range, in western White Pine County, Nevada, United States.
Delamar, Nevada, nicknamed The Widowmaker, is a ghost town in central eastern Nevada, USA along the east side of the Delamar Valley. During its heyday, primarily between 1895 and 1900, it produced $13.5 million in gold.
Josiah Edward Spurr (1870–1950) was an American geologist, explorer, and author. Born in Gloucester, Massachusetts, he was considered something of a failure as a youth, unsuited for the family fishing business, since on a voyage he invariably became seasick. Since he could not be a productive fisherman like his brothers, his parents decided he might as well go to college. After working his way through Harvard, he began his career with the Minnesota Geological Survey, making the first-ever geological map of the great Mesabi iron range in Minnesota.
Copper mining in the United States has been a major industry since the rise of the northern Michigan copper district in the 1840s. In 2017 the United States produced 1.27 million metric tonnes of copper, worth $8 billion, making it the world's fourth largest copper producer, after Chile, China, and Peru. Copper was produced from 23 mines in the US. Top copper producing states in 2014 were Arizona, Utah, New Mexico, Nevada, and Montana. Minor production also came from Idaho, and Missouri. As of 2014, the US had 45 million tonnes of known remaining reserves of copper, the fifth largest known copper reserves in the world, after Chile, Australia, Peru, and Mexico.
Silver mining in the United States began on a major scale with the discovery of the Comstock Lode in Nevada in 1858. The industry suffered greatly from the demonetization of silver in 1873 by the Coinage Act of 1873, known pejoratively as the "Crime of 73", but silver mining continues today.
Uranium mining in Wyoming was formerly a much larger industry than it is today. Wyoming once had many operating uranium mines, and still has the largest known uranium ore reserves of any state in the U.S. At the end of 2008, the state had estimated reserves dependent on price: 539 million pounds of uranium oxide at $50 per pound, and 1,227 million pounds at $100 per pound.
Silver mining in Nevada, a state of the United States, began in 1858 with the discovery of the Comstock Lode, the first major silver-mining district in the United States. Nevada calls itself the "Silver State." Nevada is the nation's second-largest producer of silver, after Alaska. In 2014 Nevada produced 10.93 million troy ounces of silver, of which 6,74 million ounces were as a byproduct of the mining of gold. The largest byproducers were the Hycroft Mine, the Phoenix Mine, the Midas Mine and Round Mountain.
Ralph Jackson Roberts (1911–2007) was an American geologist and research scientist with the USGS. He is credited with the discovery of the Carlin and Battle Mountain Gold Belts, which make up the richest gold-mining region in Nevada as well as the United States.
Gold mining in Nevada, a state of the United States, is a major industry, and one of the largest sources of gold in the world. In 2018 Nevada produced 5,581,160 troy ounces, representing 78% of US gold and 5.0% of the world's production. Total gold production recorded from Nevada from 1835 to 2017 totals 205,931,000 troy ounces (6,405.2 t), worth US$322.6 billion at 2020 values. Much of Nevada's gold production comes from large open pit mining using heap leaching recovery.
The Highland Range is a mountain range in Lincoln County, Nevada. Nearby ranges include the Bristol Range to the north, the West Range to the northwest, the Ely Springs Range to the west, the Black Canyon Range to the southwest, the Chief Range to the south and the Pioche Hills to the east.
Cortez Gold Mine is a large gold mining and processing facility in Lander and Eureka County, Nevada, United States, located approximately 75 miles (120 km) southwest of Elko. It is owned as a joint venture between Barrick Gold Corporation (61.5%) and Newmont Corporation (38.5%), operated by Barrick, and comprises the Pipeline, Crossroads, and Cortez Hills open pit mines; and the Cortez Hills underground mine. Ore from the mines is treated at an oxide mill at the site and on leach pads, while refractory ore is shipped to Barrick’s Goldstrike operation for processing.
The Buena Vista Mine is located 21 miles (34 km) south of Lovelock, Nevada. In the past, the area has been known as the Mineral Basin, though another name for the area has been the Buena Vista District. There are at least two other Buena Vista Mining Districts in Nevada, one is located near Unionville, Nevada, the other located in Esmeralda and Mineral counties near the California border. The nearby Buena Vista Hills are named for the mine. The district encompasses roughly 21 square miles (54 km2) of mineral and surface rights, and is one of the largest un-mined iron ore resources in the western United States.
The East Tintic Mountains are a mountain range in central Juab, Utah, and Tooele counties in Utah, United States on the east margin of the Great Basin just west of the Wasatch Front about 50 miles (80 km) south-southeast of Salt Lake City. The community of Eureka is an old mining town near the center of the range. U.S. Route 6 Passes through the central part of the range and through Eureka.
The Pioche Formation is a geologic formation in Utah and Nevada. It preserves fossils dating back to the Cambrian period.
Zinc mining in the United States produced 780,000 tonnes of zinc in 2019, making it the world's fourth-largest zinc producer, after China, Australia, and Peru. Most US zinc came from the Red Dog mine in Alaska. The industry employed about 2,500 in mining and milling, and 250 in smelting.
The Pachuca Range is a mountain range in the Sierra Madre Oriental of central Mexico, in the state of Hidalgo.
Bullionville is a ghost town in Lincoln County, Nevada, United States, 1/4 mile east of U.S. Route 93, one mile north of Panaca and 10 miles (16 km) south of Pioche. The town prospered between 1870 and 1882, and is now abandoned.
