A mysterious US desert civilisation
A mysterious US desert civilisation In the heart of the San Juan Basin, in the arid north-western corner of New Mexico, stands one of the greatest ancient treasures in the US: the remarkably preserved remains of a vast building complex believed to have been constructed between 850 and 1250AD that may have housed as many as 5,000 peoplchacocivilisationcivilizationdesertusaLINK