The Morasco Meteor Nature Reserve is located on the northern border of the city of Poznan. This area was converted into a reserve in 1967 AD. It extends over an area of up to 55 hectares in an oak forest. The craters caused by the meteorite and siderite are among the largest groups of craters on Earth. Large sizes and large numbers, and the diameter of the largest hole is estimated at 60 meters, and it is 11.5 meters deep.