The Stone Yantra from Bhagor

The Stone Yantra of Baghor, also known as the Baghor stone, is a significant Upper Paleolithic archaeological object found in the Son river valley in the Sidhi District of Madhya Pradesh, India. Discovered in 1980 by a joint team of archaeologists from Allahabad University and the University of California, Berkeley, this artifact is a natural triangular piece of local sandstone.

The stone was found placed in the center of a circular rubble platform, a context that strongly suggested a ritualistic purpose. The stone itself has concentric triangular laminations and was decorated with a yellow pigment. Its triangular form, which is believed to be over 11,000 years old ( some suggest about 9000 years old) , has been interpreted by many as a representation of the Kali Yantra, a traditional symbol of the divine feminine.

The discovery of the Baghor stone is of immense importance as it is considered one of the earliest known examples of a Mother Goddess shrine in the Indian subcontinent, possibly predating other known structures by several millennia. The site where it was found is still used for worship by local tribal groups like the Kol and Baiga, who have a long tradition of revering stones similar to the Baghor yantra. This remarkable continuity of religious beliefs, with the worship of the stone dating back to the hunter-gatherer era, highlights the deep roots of Devi (goddess) worship and the practice of Tantra in India. The stone serves as a tangible link between the prehistoric past and the living traditions of the present day, showcasing the enduring spiritual connection of the people to the Divine Feminine.

I was motivated to read about this stone yantra after a section in Bibek Debroy's book Devi mentioned the idea of yantra and the presence of 3 dimensional objects used in ritualism in the prevedic era. 

1.https://en.wikipedia.org/wiki/Baghor_stone?wprov=sfla1