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Cecret Lake, headwater of Little Cottonwood Creek. The first legitimate mining operation in Little Cottonwood Canyon was established in 1865. The ore deposits in Little Cottonwood Canyon yielded principally silver and lead with some copper, gold, and zinc. These ore deposits were formed mainly in shale, limestone, and dolomite.
The Little Cottonwood stock is a granitic intrusion that extends from the mouth of the canyon almost to Snowbird ski resort. It is Oligocene in age, roughly 30.5 to 29 million years old, composed primarily of granodiorite, quartz monzonite, and granite, with some mafic enclaves.
Alta was founded about 1865 to house miners from the Emma mine, the Flagstaff mine, and other silver mines in Little Cottonwood Canyon. Sensationally rich silver ore in the Emma mine enabled its owners to sell the mine at an inflated price to British investors in 1871.
Snowbird, Utah. The development of Little Cottonwood Canyon and the town of Alta dates to the 19th century. A U.S. Army soldier first prospected for silver there in 1869. Mining became a large local industry, and Little Cottonwood Canyon became one of the largest producers of silver ore in the Wasatch Mount
Granite Mountain is a mass of solid rock one mile up Little Cottonwood Canyon in the Wasatch Range of Utah, not too far from Salt Lake City, Utah.Despite its name, Granite Mountain is primarily composed of quartz monzonite, an igneous rock similar to granite in appearance, physical characteristics, and chemical composition.
From 1867 to 1976, the Big Cottonwood and Little Cottonwood mining districts combined to produce 30,600 ounces of gold, 17.5 million ounces of silver, 4.7 million pounds of zinc, 18.1 million pounds of copper, and 252 million pounds of lead. The Carbonate Mine, situated high on the east slope of Kesler Peak, was a major producer. [8]
East of Salt Lake City in Mountain Dell Canyon, near the junction of State Route 65 and the road to Emigration Canyon (see Utah State Route 239 (1947-1969) 40°46′40″N 111°41′09″W / 40.777778°N 111.685833°W / 40.777778; -111.685833 ( Little Dell
Soon after the discovery of silver in Little Cottonwood Canyon in the late 1860s, prospectors crossed the mountain ridge to the south and staked more claims in American Fork Canyon. The largest mine, the Miller Hill Mine, developed quickly, and in 1871 was purchased for $120,000 [1] by the Aspinwall Steamship Company of New York City. [2]