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The Ruby–Poorman mining district in the U.S. state of Alaska produced nearly a half million ounces of gold, all from placer mines. Some of the largest gold nuggets found in Alaska are from the district, which lies along the Yukon River. [1] The placers are mostly deeply buried, and most were originally worked with shafts and drifts. Dozens of ...
This list of mines in Oregon summarizes the mines listed by the Geographic Names Information System. As of January 7, 2014, there are 595 entries. ... Gold Pan Placer ...
In North America, placer mining was famous in the context of several gold rushes, particularly the California Gold Rush and the Colorado Gold Rush, the Fraser Canyon Gold Rush and the Klondike Gold Rush. Placer mining continues in many areas of the world as a source of diamonds, industrial minerals and metals, gems (in Myanmar and Sri Lanka ...
The discovery of gold at Sutter's Mill in 1848 is one of the defining moments in California history, with roughly 300,000 forty-niners flocking here to make their fortune from the U.S. and abroad.
An Oregon City Mining Company employee had found placer gold along the upper Molalla in 1860. Over the next 40 years, many others filed mining claims in the Molalla watershed. The biggest claimant, the Ogle Mountain Mining Company, operated the Ogle Mountain Mine between 1903 and 1915.
Gold mining is one of the most common uses for the staking of mining claims. In Alaska, state mining claims may be up to 160 acres (0.65 km 2), and there is no distinction between lode or placer claims. The boundaries of the claim must follow the 4 cardinal directions, with an exception being adjustments for existing valid claims.
The Bohemia mining district is an area of about 9 square miles (23 km 2) in the Cascade Range of the U.S. state of Oregon. Near Bohemia Mountain in Lane County, about 25 miles (40 km) southeast of Cottage Grove, the district was the most productive of the mining areas in the Western Cascades. Beginning in the 1860s, mines in the district ...
Placer was established as a supply center for the Tom East and Upper Grave Creek mines and was on the stagecoach line between New Leland and the Greenback Mine. [3] In its heyday, Placer had two large hotels, two large mercantiles and three saloons—the only ones on Upper Grave Creek—as well as other small businesses, including a newspaper ...