Thousands of years of intermittent human occupation can be seen in the walls of this incredibly deep archeological excavation at Arenosa Shelter. Because this site is located on a low terrace of the Pecos River, periodic floods left behind thick deposits of tan silt. Between the major floods are equally thick gray, ashy midden deposits created by prehistoric peoples. This early morning photo brings out colors often muted by the intense sun. This 1966 photograph from the TARL archives was probably taken by Dave Dibble; the young archeologist holding the stadia rod is Mark Parsons.
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