Details of Tunnel Blast on the Chicago Creek Section of the Mount Evans Forest Highway Project, Colorado, 1927
name: label: Collection Creator
content: Learned, Clyde E. (civil engineer)
setName: label: See more items in
content: Clyde E. Learned Papers
container: label: Container
content: Box 1, Folder 3
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials