> 50,000 years ago, a chunk of nickel iron about 150 feet (50 meters) wide... weighed 300,000 tons and traveled at a speed of 26,000 miles per hour (12 kilometers per second)... Millions of tons of limestone and sandstone were blasted out of the crater... When the dust settled, what remained was a crater three-quarters of a mile (about 1 kilometer) wide and 750 feet deep.
http://www.barringercrater.com/about/history_1.php
FWIW, if you go to Google Maps street level view, it’ll take you right down into Meteor (Barringer) crater. The views are spectacular.