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An uncut/rough yellow sapphire found at the Spokane Sapphire Mine near Helena, Montana "Yogo sapphire" is the preferred term for gems found in the Yogo Gulch, whereas "Montana sapphire" generally refers to gems found in other Montana locations. [18] More gem-quality sapphires are produced in Montana than anywhere else in North America. [18]
Utica is an unincorporated community in west-central Judith Basin County, Montana, United States. It is approximately 40 miles (64 km) from Lewistown [3] at the intersections of Pig Eye Road, Montana Route 239 (the "Utica highway"), and Montana Route 541. Yogo sapphires were found near Utica in the mid-1890s. [4] Judith River Ranger Station is ...
The sapphires, called Yogo sapphires as they are mined near Yogo Creek, occur in a formation three miles (4.8 km) long and eight feet (2.4 m) across. [ 1 ] The mountains are named for a butte in the range, Belt Butte, itself named for a band of white rock which encircles it.
An uncut, rough yellow sapphire found at the Spokane Sapphire Mine near Helena, Montana. Sapphire is one of the two gem-varieties of corundum, the other being ruby (defined as corundum in a shade of red). Although blue is the best-known sapphire color, it occurs in other colors, including gray and black, and also can be colorless.
Dry Cottonwood Creek is a creek in Deer Lodge County, Montana. Approximately 10 miles (16 km) long, it flows northwest out of the southern reaches of the Boulder Mountains into the Clark Fork river near Deer Lodge, Montana. Sapphires are found along this creek. [2]
Montana Bureau of Mines & Geology; Mount Jefferson (Madison County, Montana) ... Yogo sapphire This page was last edited on 29 October 2015, at 03:59 (UTC). ...
The total bill for Montana's largest (fictional) ranch is $1.1 million. Kayce and his family take a little land section for themselves to live quietly away from any spinoffs.
Sapphires of gem quality are found in the region. They were first found in this region at Rock Creek near Philipsburg in 1892. Rock Creek, also known as Gem Mountain, has been the most productive site in Montana for sapphires by far, even more so than Yogo Gulch, producing over 190 million carats of sapphires [citation needed].
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