Born-Digital or AnalogAnalogTranscript'Black Hawk company Activities, Ogden lode, Montgomery district. Colorado. 1863 1866 1865 Mill operation;, Black Hawk diet. Colo. Gold shipment. Central City, Colo. Gold yield, Gregory mill, Black Hawk, Colo. Gold shipment. Central City, Colo. 9CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
