This system will be undergoing maintenance October 29th between 7:30AM and 10:00AM CDT.

Argo, Jim. Oklahoma City Zoo, photograph, May 12, 1997; (https://gateway.okhistory.org/ark:/67531/metadc1668747/m1/1/: accessed October 27, 2020), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .