United States, Colorado, 39.00027, -105.50083Denver Public Library. Western History Department1914image/jp2engGeorgia State University Libraryhttp://rightsstatements.org/vocab/NoC-US/1.0/SERIES IV: Coal and AppalachiaM. H. Ross PapersSouthern Labor Archiveshttps://archivesspace.library.gsu.edu/repositories/2/resources/1Coal mines and miningCoal minersCoal mine accidentsCoal miners--DeathCoal miners--Political activityStrikes and lockouts--Coal miningCoal Strike (Colorado : 1913-1914)Demonstration following the Ludlow Massacre, 1914StillImage