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Arches National Park

Arches National Park, 76,519 acres (30,979 hectares), E Utah; est. as a national monument 1929, designated a national park 1971. Located in red-rock country and overlooking the gorge of the Colorado River, this area contains a vast and unusual array of natural rock formations. Water, frost, and wind have carved giant but graceful arches, windows, spires, and pinnacles. See National Parks and Monuments (table).

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"Arches National Park." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 20 Aug. 2017 <http://www.encyclopedia.com>.

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"Arches National Park." The Columbia Encyclopedia, 6th ed.. . Retrieved August 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/arches-national-park

Arches National Park

Arches National Park Region in se Utah, USA, overlooking Colorado River Gorge. It was authorized in 1929. The region includes unusual giant sandstone arches, windows, pinnacles and spires. A landscape arch forms a natural bridge more than 30m (100ft) high and 89m (290ft) long. Area: 33,596ha (82,953acres).

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"Arches National Park." World Encyclopedia. . Encyclopedia.com. 20 Aug. 2017 <http://www.encyclopedia.com>.

"Arches National Park." World Encyclopedia. . Encyclopedia.com. (August 20, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/arches-national-park

"Arches National Park." World Encyclopedia. . Retrieved August 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/arches-national-park