Marking of U. P. Trail Address at the first marker, Col. Heizer, Buckskin Charley, & Ex. Gove. Adams

Poley, H. S. (Horace Swartley), Marking of U. P. Trail Address at the first marker, Col. Heizer, Buckskin Charley, & Ex. Gove. Adams (August 29, 1912). Denver Public Library Digital Collections, accessed 17/05/2025, https://digital.denverlibrary.org/nodes/view/1039054