Back Dinosaur National Monument (parke sa Tinipong Bansa, Colorado) CEB Dinosaur National Monument German Monumento nacional Dinosaurio Spanish Dinosaur National Monument French המונומנט הלאומי דינוזאור HE Dinosaur National Monument Italian Dinozaurų nacionalinis paminklas Lithuanian Dinosaur National Monument Dutch Dinosaur National Monument NB Dinosaur National Monument Polish

Dinosaur National Monument

Dinosaur National Monument
IUCN category V (protected landscape/seascape)[1]
A dinosaur skull embedded in rock at Dinosaur National Monument
Map showing the location of Dinosaur National Monument
Map showing the location of Dinosaur National Monument
Location in the United States
LocationMoffat County, Colorado and Uintah County, Utah, U.S.
Nearest cityVernal, Utah
Coordinates40°32′N 108°59′W / 40.533°N 108.983°W / 40.533; -108.983
Area210,844 acres (853.26 km2)
EstablishedOctober 4, 1915[2]
Visitors304,468 (in 2018)[3]
Governing bodyU.S. National Park Service
WebsiteDinosaur National Monument
Dinosaur National Monument entrance
Map showing the boundaries of Dinosaur National Monument

Dinosaur National Monument is an American national monument located on the southeast flank of the Uinta Mountains[4] on the border between Colorado and Utah at the confluence of the Green and Yampa rivers. Although most of the monument area is in Moffat County, Colorado, the Dinosaur Quarry is located in Utah, north of the town of Jensen, Utah. The nearest Colorado town is Dinosaur while the nearest city is Vernal, Utah.

Originally preserved in 1915 to protect its famous Dinosaur Quarry,[5] the monument was greatly expanded in 1938 to include its wealth of natural history. The park's wild landscapes, topography, geology, paleontology, and history make it a unique resource for both science and recreation. The park contains over 800 paleontological sites and has fossils of dinosaurs including Allosaurus, Deinonychus, Abydosaurus, and various sauropods.[5] The Abydosaurus consists of a nearly complete skull, the lower jaw, and first four neck vertebrae. The specimen was found at the base of the Mussentuchit Member of the Cedar Mountain Formation and is the holotype for the description.

Paleontologist Earl Douglass of the Carnegie Museum discovered eight vertebra of an Apatosaurus on August 17, 1909,[2] which became the first dinosaur skeleton discovered and excavated at the new Carnegie Quarry. The area around the quarry was declared a national monument on October 4, 1915.[2] The International Dark-Sky Association designated Dinosaur National Monument an International Dark Sky Park in April 2019.[6]

  1. ^ "Protected Area Profile for Dinosaur from the World Database of Protected Areas". protectedplanet.net. UN World Conservation Monitoring Centre and the IUCN. Retrieved September 7, 2021.
  2. ^ a b c "Dinosaur National Monument Statistics". NPS. January 11, 2008. Retrieved 2009-03-21.
  3. ^ "NPS Annual Recreation Visits Report". National Park Service. Retrieved 2017-05-09.
  4. ^ Hansen, Wallace (1969). The Geologic Story of the Uinta Mountains (USGS Bulletin 1291 ed.). U.S. Geological Survey.
  5. ^ a b Gregson, J.D.; Chure, D.J.; Sprinkle, D.A. (2010). "Geology and Paleontology of Dinosaur National Monument". Geology of Utah's Parks and Monuments. UGA Publication 28 (third edition) (Utah Geological Association): 161–192.
  6. ^ "Dinosaur National Monument Designated as an International Dark Sky Park". International Dark-Sky Association. 2019-04-22. Retrieved 2019-07-05.

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