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Amendment to Metal mining and tourist era resources of Boulder County : multiple property listing
Colorado Historical Society. Office of Archaeology and Historic Preservation.
National Register of Historic Places.
Office of Archaeology and Historic Preservation, Colorado Historical Society
Amendment form for Boulder County, Colorado sites to be placed on the National Register of Historic Places.
Includes bibliographical references (p. [401-412]).
Conservation and restoration
Mines and mineral resources
1 PDF (412 p. : ill. ; 81,405 KB)