The Meteor Crater (yes, that is it’s actual name) is one of the best preserved meteor craters in the world. This is due to its young age for a crater, at approximately 50,000 years old, and the dry climate around it in Arizona.
That is not to say the Meteor Crater is perfectly preserved. Scientists estimate that 50–65 ft (15–20 m) of height has been lost at the rim crest as a result of natural erosion, and 100 ft (30 m) of sediment has been added to the basin.