Handyman Chicago News Gallery

Thu, Aug-15-2013 02:45:23

Nevada petroglyphs the oldest in North America

PYRAMID LAKE, Nev. — Ancient rock etchings along a dried-up lake bed in Nevada have been confirmed to be the oldest recorded petroglyphs in North America, dating back at least 10,000 years. The petroglyphs found on limestone boulders near Pyramid Lake