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1871 Hayden Survey at Mirror Lake en route to East Fork of the Yellowstone River, August 24, 1871-W.H. Jackson photo. The Hayden Geological Survey of 1871 explored the region of northwestern Wyoming that later became Yellowstone National Park in 1872. It was led by geologist Ferdinand Vandeveer Hayden.
Yellowstone National Park spans an area of 3,468.4 sq mi (8,983 km 2), [ 3 ] with lakes, canyons, rivers, and mountain ranges. [ 11 ] Yellowstone Lake is one of the largest high-elevation lakes in North America and is centered over the Yellowstone Caldera, the largest super volcano on the continent.
The Hayden Geological Survey of 1871 explored the region of northwestern Wyoming that became Yellowstone National Park in 1872. It was led by geologist Ferdinand Vandeveer Hayden. In the spring of 1871, Hayden selected the members of the survey team, 32 in all from among friends and colleagues, seven previous survey participants and a few ...
Hike / auto / bus. The Yellowstone Caldera, sometimes referred to as the Yellowstone Supervolcano, is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States. The caldera and most of the park are located in the northwest corner of the state of Wyoming. The caldera measures 43 by 28 miles (70 by 45 ...
The most recent volcanic eruption occurred in Yellowstone approximately 650,000 years ago resulting in a 30- by 45-mile caldera, or basin. The heat powering the volcanic eruptions still fuels the ...
The valley was the natural route to Yellowstone Lake as trappers, explorers and natives made their way up the Yellowstone River. On August 29, 1870, when Henry D. Washburn and Gustavus Cheyney Doane ascended Mount Washburn during the Washburn-Langford-Doane Expedition, they saw the great expanse of the Hayden Valley between Yellowstone Falls and the lake.
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