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"Panning out" ~ Stereoscopic view of print taken by the U.S. Geological and Geographic Survey of the Territories ~ circa 1874–1879 Gold panning is a simple process. Once a suitable placer deposit is located, some alluvial deposits are scooped into a pan, where they are then wetted and loosed from attached soils by soaking, fingering, and aggressive agitation in water.
Founded in 1865 as the Seldon and Griswold Manufacturing Company, the Griswold company became known as the premier manufacturer of high-quality cast-iron kitchen items in the United States. The Griswold cast iron foundry was based in Erie, Pennsylvania; and until the early 1900s, cast-iron items from this company were marked with an "ERIE" logo.
The gold discoveries led to the discovery of the silver deposits in 1877, and the founding of the city of Leadville. The Little Johnny silver and lead mine, dating from 1879, was further developed in 1893, by John F. Campion and James Joseph Brown, which resulted in the production of large deposits of high-grade gold-copper ore.
The Pioneer Woman collection has amazing lightweight, nonstick cast aluminum pans in all shapes and sizes. Shop all the vintage-inspired options here! Ree Drummond Is 'Obsessed' With This Fry Pan ...
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Plate depicting placer mining from the 1556 book De re metallica. Placers supplied most of the gold for a large part of the ancient world. Hydraulic mining methods such as hushing were used widely by the Romans across their empire, but especially in the gold fields of northern Spain after its conquest by Augustus in 25 BC.