Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A) Panoramic view of the dolostone escarpment in the Piedra River valley, showing the location of Charco Verde II (white arrow points to the excavation area). B) View from the West of the sedimentary deposit preserved at the foot of the rock shelter.
