State of Oklahoma(PDF) (Map) (1907 ed.). Department of the Interior, General Land Office. Archived(PDF) from the original on October 10, 2022. Retrieved September 14, 2008.
naco.org
"Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
odot.org
State of Oklahoma(PDF) (Map) (1907 ed.). Department of the Interior, General Land Office. Archived(PDF) from the original on October 10, 2022. Retrieved September 14, 2008.