erc:
who: United States. Army. Corps of Engineers.
what: Saltillo Ranch Quadrangle
when: 1923
where: https://texashistory.unt.edu/ark:/67531/metapth458501/
erc-support:
who: University of North Texas Libraries
what: Permanent: Stable Content:
when: 20081203
where: https://texashistory.unt.edu/ark:/67531/