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  • All fields: AMAX, Inc.--Branches, chapters, etc.--1970-1980.
(14 results)



Display: 50

    • The ore tunnel at Henderson extends 9.6 miles under the Continental Divide

    • Miners stand near the headframe of a ventilation shaft of the Henderson Tunnel in Grand County, Colorado.
    • AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Henderson Mine (Clear Creek County, Colo.)--Branches, chapters, etc.--1970-1980.; Grand County (Colo.)--1970-1980.; Miners--Colorado--Grand County--1970-1980.; Mining--Colorado--Grand...
    • [between 1974 and 1976]
    • These huge boilers at the Henderson Mine heat water for surface domestic heat

    • A technician stands near a group of horizontal tubular boilers at the Henderson Mine in Clear Creek County, Colorado. Signs on the boilers read: "Cleaver Brooks".
    • AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Clear Creek County (Colo.)--1970-1980.; Henderson Mine (Colo.)--1970-1980.; Boilers--Colorado--Clear Creek County--1970-1980.; Mining--Colorado--Clear Creek County--1970-1980.
    • [between 1976 and 1980]
    • Workers at Henderson mine prepare to go undergound

    • Miners walk near rows of gagues enroute to the cage in the shaft of the Henderson Mine in Clear Creek County, Colorado. They wear hard hats and tool belts.
    • AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Henderson Mine (Colo.)--1970-1980.; Miners--Colorado--Clear Creek County--1970-1980.; Mining--Colorado--Clear Creek County--1970-1980.
    • [between 1976 and 1980]
    • Woman miner, right, works along side male counterpart on "jumbo" drill sharing equally...

    • Miners, a man and a woman, work with a pneumatic drill in a tunnel of the Henderson Mine in Clear Creek County, Colorado. They wear hard hats with miners' lights.
    • AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Henderson Mine (Colo.)--1970-1980.; Drilling & boring machinery--Colorado--Clear Creek County--1970-1980.; Miners--Colorado--Clear Creek County--1970-1980.; Mining--Colorado--Clear Creek...
    • [between 1976 and 1980]
    • Workers load powder into drilled holes via hose using compressed air

    • Miners (a man and a woman) load explosives into the wall of a tunnel at the Henderson Mine in Clear Creek County, Colorado. They wear hard hats with miners' lights.
    • AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Henderson Mine (Colo.)--1970-1980.; Explosives--Colorado--Clear Creek County--1970-1980.; Miners--Colorado--Clear Creek County--1970-1980.; Mining--Colorado--Clear Creek County--1970-1980.;...
    • [between 1976 and 1980]
    • Workers at Henderson using a "jumbo" drill advance this drift by drilling a series of...

    • Miners use an LHD (load-haul-dump) and pneumatic drill in a tunnel of the Henderson Mine in Clear Creek County, Colorado. A sign on the LHD reads: "Ingersoll Rand".
    • AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Henderson Mine (Colo.)--1970-1980.; Drilling & boring machinery--Colorado--Clear Creek County--1970-1980.; Miners--Colorado--Clear Creek County--1970-1980.; Mining--Colorado--Clear Creek...
    • [between 1976 and 1980]
    • Molybdenum ore stockpiles await the ball mills after grinding at the Henderson primary crusher

    • A semi truck is parked near an ore pile under a covered conveyor at the Henderson Mill in Grand County, Colorado.
    • AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Henderson Mine (Clear Creek County, Colo.)--Branches, chapters, etc.--1970-1980.; Grand County (Colo.)--1970-1980.; Mining--Colorado--Grand County--1970-1980.; Trucks--Colorado--Grand...
    • [between 1974 and 1980]
    • Water in tailings pond is recovered to reuse in slurry pipeline

    • View of the drainage system and tailings pond at the Henderson Mill in Grand County, Colorado.
    • AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Henderson Mine (Clear Creek County, Colo.)--Facilities--1970-1980.; Tailings dams--Colorado--Grand County--1970-1980.; Grand County (Colo.)--1970-1980.; Mining--Colorado--Grand County--1970-1980.
    • [between 1974 and 1980]
    • Slurry pipeline carries finely ground waste rock or tailings to the tailings pond

    • View of the overhead slurry pipeline at the Henderson Mill in Grand County, Colorado. The covered conveyor is in the distance.
    • AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Henderson Mine (Clear Creek County, Colo.)--Facilities--1970-1980.; Grand County (Colo.)--1970-1980.; Mining--Colorado--Grand County--1970-1980.; Pipelines--Colorado--Grand County--1970-1980.
    • [between 1974 and 1980]
    • Dedication of the Henderson Mine site commemorated initial production that month after $500...

    • A group of spectators look on as a man gives a speech at the commemoration of production that month after a 500 million dollar investment at the Henderson Mine, Clear Creek, Colorado.
    • AMAX, Inc.--Branches, chapters, etc.--1970-1980.; Clear Creek County (Colo.)--1970-1980.; Henderson Mine (Colo.)--1970-1980.; Meetings--Colorado--Clear Creek County--1970-1980.; Mining--Colorado--Clear Creek County--1970-1980.; Public...
    • July, 1976

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