Blythe Intaglios - gigantic figures found on the ground near Blythe, California in the Colorado Dese
Blythe Intaglios - gigantic figures found on the ground near Blythe, California in the Colorado Desert. They are believed to date from 1000 CE but could range from 450 to 10,000 years old, and were most likely created by Mojave and Quechan Indians. -- source link
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