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The Missouri River is a river in the Central and Mountain West regions of the United States.The nation's longest, [13] it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Mountains of southwestern Montana, then flows east and south for 2,341 miles (3,767 km) [6] before entering the Mississippi River north of St. Louis, Missouri.
The Great Falls of the Missouri River are a series of waterfalls on the upper Missouri River in north-central Montana in the United States. From upstream to downstream, the five falls along a 10-mile (16 km) segment of the river [2] are: Black Eagle Falls (26 feet 5 inches or 8.05 meters) [2] Colter Falls (6 feet 7 inches or 2.01 meters) [2]
Beyond the tree line, trees cannot tolerate the environmental conditions (usually low temperatures, extreme snowpack, or associated lack of available moisture). [1]: 51 The tree line is sometimes distinguished from a lower timberline, which is the line below which trees form a forest with a closed canopy. [2]: 151 [3]: 18
The Missouri River Valley outlines the journey of the Missouri River from its headwaters where the Madison, Jefferson and Gallatin Rivers flow together in Montana to its confluence with the Mississippi River in the State of Missouri. At 2,300 miles (3,700 km) long the valley drains one-sixth of the United States, [1] and is the longest river ...
The Upper Missouri River Breaks National Monument is a national monument in the western United States, protecting the Missouri Breaks of north central Montana.Managed by the Bureau of Land Management (BLM), it is a series of badland areas characterized by rock outcroppings, steep bluffs, and grassy plains; a topography referred to as "The Breaks" (as the land appears to "break away" to the river).
Map of principal rivers of Montana Further information on the hydrological apex of the North American continent: Triple Divide Peak (Montana) This list is incomplete ; you can help by adding missing items .
The Gallatin River is a tributary of the Missouri River, approximately 120 mi (193 km) long, in the U.S. states of Wyoming and Montana. It is one of three rivers, along with the Jefferson and Madison , that converge near Three Forks, Montana , to form the Missouri.
The Missouri enters North Dakota near Fort Union, [59] having drained more than half the land area of Montana (82,000 square miles (210,000 km 2)). [57] Nearly one-third of the Missouri River in Montana lies behind 10 dams: Toston, Canyon Ferry, Hauser, Holter, Black Eagle, Rainbow, Cochrane, Ryan, Morony, and Fort Peck. [60]