Jump to content

Monument Rocks (Kansas)

Coordinates: 38°47′26″N 100°45′45″W / 38.79056°N 100.76250°W / 38.79056; -100.76250
From Wikipedia, the free encyclopedia
Monument Rocks
View of the Monument Rocks
Map showing location of Monument Rocks
LocationSouth of Oakley, Kansas, Gove County, Smoky Hills, Kansas, United States
Coordinates38°47′26″N 100°45′45″W / 38.79056°N 100.76250°W / 38.79056; -100.76250
Elevation802 m (2,631 ft)
EstablishedNational Natural Landmark
WebsiteWashburn University website

Monument Rocks (also Chalk Pyramids) are a series of large chalk formations in Gove County, Kansas, rich in fossils. The formations were the first landmark in Kansas chosen by the US Department of the Interior as a National Natural Landmark. The chalk formations reach a height of up to 70 ft (21 m) and include formations such as buttes and arches. The carbonate deposits were laid down during the Cretaceous Period in what was then the Western Interior Seaway, which split the continent of North America into two landmasses. They are estimated to have been formed 80 million years ago.


On January 29, 2008, Monument Rocks, 25 miles south of Oakley, Kansas, and Castle Rock, 31 miles to the east, were jointly named as one of the 8 Wonders of Kansas.[1]


See also[edit]

Other geological formations in Kansas:


Further reading[edit]

  • Williston, S. W (1891). "The Niobrara Cretaceous of Western Kansas". Transactions of the Annual Meetings of the Kansas Academy of Science. 13: 107–11. doi:10.2307/3623983. JSTOR 3623983.
  • Charlton, John; Merriam, Dan (2003). "Ever changing landscape: Recent topographic landmark erosion in Kansas". Transactions of the Kansas Academy of Science. 106 (1 & 2): 29–39. doi:10.1660/0022-8443(2003)106[0029:ECLRTL]2.0.CO;2. JSTOR 3628377. S2CID 85800622.

External links[edit]