Ouray Teamsters and Packers Union pose with their 4th of July float in front of the Munn Brothers Assay Office in Ouray, Colorado, c. 1906.

Women demonstrate in 1914 to free Mother Jones and support the mine workers' strike against Colorado Fuel and Iron, in Trinidad, Colorado.

On April 20, 1914, the National Guard set fire to the UMWA strikers' tent colony in Ludlow, Colorado, where miners had been living since the Colorado Fuel and Iron Company, had evicted them from their homes.