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The Yellowstone River is a tributary of the Missouri River, approximately 692 miles (1,114 km) long, in the Western United States.Considered the principal tributary of upper Missouri, via its own tributaries it drains an area with headwaters across the mountains and high plains of southern Montana and northern Wyoming, and stretching east from the Rocky Mountains in the vicinity of Yellowstone ...
The next biggest supereruption formed the Yellowstone Caldera (640,000 years ago) and produced the Lava Creek Tuff. The Henry's Fork Caldera (1.2 million years ago) produced the smaller Mesa Falls Tuff, but is the only caldera from the Snake River Plain–Yellowstone hotspot that is plainly visible today. [15]
Yellowstone National Park is a national park of the United States located in the northwest corner of Wyoming and extending into Montana and Idaho.It was established by the 42nd U.S. Congress with the Yellowstone National Park Protection Act and signed into law by President Ulysses S. Grant on March 1, 1872.
44°26′N 110°40′W / 44.43°N 110.67°W / 44.43; -110.67. The Yellowstone hotspot is a volcanic hotspot in the United States responsible for large scale volcanism in Idaho, Montana, Nevada, Oregon, and Wyoming, formed as the North American tectonic plate moved over it. It formed the eastern Snake River Plain through a succession ...
Greater Yellowstone. Coordinates. 45°23′47″N110°44′9″W / 45.39639°N 110.73583°W. River. Yellowstone River. Paradise Valley is a major river valley of the Yellowstone River in Southwestern Montana just north of Yellowstone National Park in Park County. The valley is flanked by the Absaroka Range on the east and the Gallatin ...
The “first national park” was born 151 years ago, on March 1, 1872, when President Ulysses S. Grant signed into law the Yellowstone National Park Protection Act.. Yellowstone National Park is ...
This list summarizes the major expeditions to the Yellowstone region that led to the creation of the park and contributed to the protection of the park and its resources between 1869 and 1890. When President Ulysses S. Grant created Yellowstone National Park with the signing of the Act of Dedication, March 1, 1872, it was the result of three ...
Map all coordinates using OpenStreetMap. The Nez Perce native Americans fled through Yellowstone National Park between August 20 and Sept 7, during the Nez Perce War in 1877. As the U.S. army pursued the Nez Perce through the park, a number of hostile and sometimes deadly encounters between park visitors and the Indians occurred.