King Jr., David T. (April 23, 2010). "Wetumpka Crater". The Encyclopedia of Alabama. Alabama Humanities Foundation. Archived from the original on February 16, 2012. Retrieved February 7, 2013.
King Jr., David T. (April 23, 2010). "Wetumpka Crater". The Encyclopedia of Alabama. Alabama Humanities Foundation. Archived from the original on February 16, 2012. Retrieved February 7, 2013.