Here's a Live Science article explaining it:
https://www.livescience.com/38623-giant-pentagram-in-kazakhstan.html

Map link:
https://www.google.com/maps/place/52%C2%B028'47.1%22N+62%C2%B011'08.4%22E/@52.4791205,62.1844292,966m/data=!3m1!1e3!4m4!3m3!8m2!3d52.47975!4d62.1856667?entry=ttu&g_ep=EgoyMDI0MTIwMi4wIKXMDSoASAFQAw%3D%3D