#advanced civilization
Over the past century, dozens of carved megalithic stone slabs of unknown origin and function have been uncovered in the southern part of the state of Mexico and the north of Guerrero, mostly around the small archaeological site of San Miguel Ixtapan, Tejupilco.
Further excavations, beginning in 1995, have revealed the remains of extensive megalithic architecture consisting of huge blocks of basalt and andesite, many weighing several tons, showing remarkable similarities with South American artistic and architectural styles.
“…surprisingly little is known of these mysterious slabs, with only a handful found in an archaeological context. Their function (altar stones, ornamental panels or elements of megalithic architecture?), Their age and their provenance are totally unknown. What civilization or culture produced them? How many centuries or millennia ago? Another mystery lies in the accuracy of the engravings in hard andesite or basalt, which would have required the use of hardened metal tools of which there is no evidence in the archaeological records of Mesoamerica”
