The Batagaika crater on Google maps: https://www.google.com/maps/place/Batagaika+Crater/@67.5875202,134.7422223,7634m/data=!3m1!1e3!4m5!3m4!1s0x5bbfe8605f07518

The Batagaika crater on Google maps: https://www.google.com/maps/place/Batagaika+Crater/@67.5875202,134.7422223,7634m/data=!3m1!1e3!4m5!3m4!1s0x5bbfe8605f075181:0x5c183f59b6ae6d2!8m2!3d67.5804711!4d134.7728746 https://www.google.com/maps/place/Batagaika+Crater/@67.58752... There are a lot of lakes around that look like craters, just filled with water. Maybe 'crater' is a wrong term to apply to this formation.