The area is rich in round lakes. The are listed as "meteor" craters although no grounds for such categorisation is given. In addition they do not like meteor craters at all, nor even like craters that appeared as a result of a collision with hard body. If hard body landed here from the skies it should have made the usual hole in the ground, but that is not observed. Just the opposite, the centres of few likes are even elevated. Such pattern happens to be typical for explosions.