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Inside Cover

Photograph of blocks of large basalt blocks with petroglyphs carved into the dark patina of desert varnish on the large boulders, exposing the lighter colored basaltic rock beneath.

Photograph of the West Mesa escarpment along the Rinconada Canyon Trail. Erosion of the Santa Fe Group sediments that underlie a basaltic cap rock has caused large blocks of rock to tumble down the eastern escarpment of the mesa. Most of the petroglyphs were chiseled into the dark patina of desert varnish on these large boulders, exposing the lighter colored basaltic rock beneath.

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NPS photograph by Dale Pate (Geologic Resources Division).

Public domain:Full Granting Rights

Image

Petroglyph National Monument, Code: PETR

Petroglyph National Monument, Bernalillo County, New Mexico
Latitude: 35.1231994628906, Longitude: -106.758003234863

NPS.gov Collection

12/10/2012

12/10/2012

Tuesday, August 31, 2021 4:40:41 PM

Tuesday, August 31, 2021 4:44:30 PM

Front_cover_73 PETR 2012 12 10 NPS Photo DPate Rinconada Canyon Trail.JPG

NIKON CORPORATION NIKON CORPORATION, NIKON D90

1/320 sec at f / 14

26 mm

ISO 200

Monday, December 10, 2012 9:26:50 PM

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