Miners exit a cage at the top of the shaft of the Henderson Mine in Clear Creek County, Colorado. They wear hard hats with miners' lights and carry lunch boxes.
AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Clear Creek County (Colo.)--1970-1980.; Henderson Mine (Colo.)--1970-1980.; Interiors--Colorado--Clear Creek County--1970-1980.; Miners--Colorado--Clear Creek County--1970-1980.;...
[between 1976 and 1980]
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