3 ms·

The archaeologists' paper (in Spanish) has pictures: https://tp.revistas.csic.es/index.php/tp/article/view/881/951 https://tp.revistas.csic.es/index.php/tp/arti

• flint 4y ago
  Should be top comment
• em-bee 4y ago
  looking at those photos, it is entirely not obvious that these stones are placed in a pattern. some look entirely random. it's not surprising that this wasn't discovered earlier.
• mongol 4y ago
  Thank you!