Iowa’s borders are defined in the Preamble to the state ConstitutionArchived 2009-08-02 at the Wayback Machine. The Missouri and Mississippi river boundaries are as they were mapped in the 19th century, which can be different than their modern courses.
Merry, Carl A. (1996). "The Historic Period". Office of the State Archaeologist at the University of Iowa. Archived from the original on June 4, 2009. Retrieved May 7, 2012.
Alex, Lynn M. (2000). Iowa's Archaeological Past. University of Iowa Press, Iowa City. Archived from the original on May 29, 2012. Retrieved May 9, 2012.
Iowa’s borders are defined in the Preamble to the state ConstitutionArchived 2009-08-02 at the Wayback Machine. The Missouri and Mississippi river boundaries are as they were mapped in the 19th century, which can be different than their modern courses.
Alex, Lynn M. (2000). Iowa's Archaeological Past. University of Iowa Press, Iowa City. Archived from the original on May 29, 2012. Retrieved May 9, 2012.
Merry, Carl A. (1996). "The Historic Period". Office of the State Archaeologist at the University of Iowa. Archived from the original on June 4, 2009. Retrieved May 7, 2012.
Iowa’s borders are defined in the Preamble to the state ConstitutionArchived 2009-08-02 at the Wayback Machine. The Missouri and Mississippi river boundaries are as they were mapped in the 19th century, which can be different than their modern courses.
