Shale rock formation - Colorado
name: label: Collection Creator
content: American Petroleum Institute.
setName: label: See more items in
content: American Petroleum Institute Photograph and Film Collection
label: See more items in
content: American Petroleum Institute Photograph and Film Collection / Series 1: Historical Photographs, 1850s-1950s / 1.16: Mining, 1895-1920s
unitdate: label: Date
content: 1918
container: label: Container
content: Box 9, Folder 5
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials