Filters: Tags: {"scheme":"http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/PhotoMedia"} (X) > Date Range: {"choice":"year"} (X) > partyWithName: U.S. Geological Survey (X) > partyWithName: Butler, B.S. (X)

Filters Date Types (for Date Range) Categories Image (1) Tag Types label (1) Tags (with Scheme=http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/PhotoMedia) photo print (1) View Results as: JSON ATOM CSV

Texture and alteration of Calumet Hecla conglomerate lode. Michigan. 1922. Texture and alteration of Calumet Hecla conglomerate lode: underground view of lode showing bleaching of rock associated with copper, light bands copper bearing. Michigan. Circa 1922. Plate 72-F in U.S. Geological Survey. Professional paper 144. 1929. Categories: Image; Tags: Butler, B.S. Collection, Michigan, Photographers, photo print