Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Mesa Verde National Park' has mentioned 'Sandstone' in the following places:
Occurrence Sentence Text Source
The structures contained within these alcoves were mostly blocks of hard sandstone, held together and plastered with adobe mortar.
Mesa Verde's canyons were created by streams that eroded the hard sandstone that covers the area.
In the late Cretaceous Period, the Mancos Shale was deposited on top of the Dakota Sandstone, which is the rock formation that can be found under much of Colorado.
The first is the Point Lookout Sandstone, which is named for the Point Lookout feature in the park (elevation 8427 feet).
This sandstone, which formed in the marine environment of shallow water when the Cretaceous sea was receding, is "massive, fine-grained, cross-bedded, and very resistant", in its layers reflecting waves and currents that were present during the time of its formation.
At the top, this formation is intruded upon by the Cliff House Sandstone.
The Cliff House Sandstone is the area's youngest rock layer.
Like the Point Lookout Sandstone, it is about 400 feet thick.
Dating back more than 700 years, the dwelling is constructed of sandstone, wooden beams, and mortar.
Some 600 cliff dwellings built of sandstone and mud mortar have been recorded within Mesa Verde National Parkxc2xa0xe2x80x93 including the famous multi-storey Cliff Palace, Balcony House, and Square Tower Housexc2xa0xe2x80x93 and an additional 4,300 archaeological sites have been discovered.
Large portions of the sandstone and mud-mortar multi-storey buildings have survived intact in form and materials, a tribute to the engineering skills of these early peoples as well as the dry environment of the mesaxe2x80x99s alcoves.