The biggest drawing ever made may be a spiral found in India

摘要

A HUGE spiral carved into the ground in India covers almost 100,000 square metres, dwarfing other individual geoglyphs like those in the Nazca desert in Peru. The spiral is in a small cluster of geoglyphs discovered by researchers Carlo and Yohann Oetheimer, based in Luriecq, France. Carlo searched Google Earth images of the Thar desert in India and identified eight sites with possible geoglyphs. In 2016, they flew a drone over them and found that three were furrows dug for failed tree plantations. One site was near the village of Boha. Using the drone there, the Oetheimers identified four distinct symbols, which they then visited. Each line in the geoglyphs is 20 to 50 centimetres wide and was made by scraping away sand and silt. The central symbol is a roughly oval spiral that is 724 metres long and 201 metres wide, made of a single 12-kilometre line. To the immediate south-west, there is a second line that repeatedly bends back on itself, forming a grid of parallel lines. Two smaller geoglyphs to the north and south-west are heavily eroded (Archaeological Research in Asia, doi.org/gjztrs).