Hello Jay and List, The only impact crater in Alabama (as far as I know) is the Wetumpka impact crater. It is located in Elmore County, Alabama, USA (32° 31.5' N, 86° 10.5' W), its diameter is 6.5 km. Planar deformation features in quartz, an iridium component and impactites have been found there. Bernd (in Germany)