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"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] Montana sapphires come in a variety of colors, though rubies are rare. [16] [18] [23]
These 15 koi pond ideas will inspire you to transform your outdoor space into a serene outdoor oasis. They prove that koi ponds can work in spaces of all sizes.
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]
Since its introduction, the program has developed 270,000 management plans that consist of more than 31,000,000 acres (130,000 km 2) of private land. Stewardship plans promote forest health and development through active management while providing timber, wildlife habitat, natural watersheds, recreational opportunities and many other benefits.
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.
The Berkeley Pit is a former open pit copper mine in the western United States, located in Butte, Montana.It is one mile (1.6 km) long by one-half mile (800 m) wide, with an approximate maximum depth of 1,780 feet (540 m).
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.
The Sapphire Mountains are a range of mountains located in southwestern Montana in the northwestern United States.From a point near the Clark Fork River and the city of Missoula, they run in a southerly direction for a distance of approximately 60 miles (100 km), making up much of the border between Ravalli County (to the west) and Granite County.