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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 ...
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 ...
Showdown is a ski area located within the mountains located off US Highway 89 which splits the mountains in half connecting White Sulphur Springs and Belt, MT. The highest point in the Little Belt Range is Big Baldy Mountain at 9,467 feet (2,886 m). The Little Belts have been mined for silver since the 1880s, and for sapphire since 1896. [1]
Area. 6,666 acres (2,698 ha) Established. 1981 (first designation; de-designated in 1982); 1985 (re-designation) Governing body. Bureau of Land Management. Sleeping Giant Wilderness Study Area is a non-motorized recreation area located on the west side of the Missouri River and Holter Lake located about 30 miles (48 km) north of Helena, Montana ...
The geology of Montana includes thick sequences of Paleozoic, Mesozoic and Cenozoic sedimentary rocks overlying ancient Archean and Proterozoic crystalline basement rock. . Eastern Montana has considerable oil and gas resources, while the uplifted Rocky Mountains in the west, which resulted from the Laramide orogeny and other tectonic events have locations with met
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.
Ashley noted that a mining camp in the Colorado Territory had already used the name, and Congress agreed to use the name for the new territory. [1] According to the United States Board on Geographic Names, there are at least 100 named mountain ranges and sub-ranges in Montana. However, mountain ranges have no official boundaries, and there is ...
Helena has been the capital of Montana Territory since 1875 and the state of Montana since 1889. Referendums were held in 1892 and 1894 to determine the state's capital; the result was to keep the capitol in Helena. In 1902, the Montana State Capitol was completed. [ 55 ][ 56 ] Until the 1900 census, Helena was the most populous city in the state.
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