Yellowstone
geographical name
Yel·low·stone
ˈye-lō-ˌstōn
river 671 miles (1080 kilometers) long in northwestern Wyoming and southern and eastern Montana flowing north through
Yellowstone Lake (area 140 square miles, or 364 square kilometers)
and
the Grand Canyon of the Yellowstone
in Yellowstone National Park and northeast into the Missouri River in northwestern North Dakota near the border with Montana
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Merriam-Webster unabridged
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