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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
The Great Falls tectonic zone was first identified in 1985. [4] Geologists originally believed the zone was part of the Wyoming craton, but now conclude that it is distinct from it. [ 2 ] There is continuing controversy over whether the region is a shear zone or suture , [ 1 ] [ 9 ] and the role the zone played in the formation of the North ...
The Great Falls were incorporated into the Idaho Territory on March 4, 1863, [58] and then into the Montana Territory on May 28, 1864. [35] It became part of the state of Montana upon that territory's admission to statehood on November 8, 1889. [35] The Great Falls of the Missouri River became the site of a permanent settlement in 1883.
Big Falls (also called Great Falls or Roar of Steam [1]) is a major waterfall located on the Missouri River in western Montana in the United States. It is the lowermost and largest of the Great Falls of the Missouri , at 87 feet (27 m) high and up to 900 feet (270 m) wide at peak flow.
Montana is home to diverse fauna including 14 amphibian, [82] 90 fish, [83] 117 mammal, [84] 20 reptile, [85] and 427 bird [86] species. Additionally, more than 10,000 invertebrate species are present, including 180 mollusks and 30 crustaceans. Montana has the largest grizzly bear population in the lower 48 states. [87]
Great Falls is the third most populous city in the U.S. state of Montana and the county seat of Cascade County.The population was 60,442 according to the 2020 census. [4] The city covers an area of 22.9 square miles (59 km 2) [5] and is the principal city of the Great Falls, Montana, Metropolitan Statistical Area, which encompasses all of Cascade County.
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Rogers Pass is a mountain pass that rises 5,610 feet (1,710 m) above sea level and is located on the Continental Divide in the U.S. state of Montana. [1] The pass is adjacent to Helena National Forest and is traversed by Montana Highway 200, providing the shortest route between the cities of Great Falls and Missoula, Montana.