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Keywords from Image Description:
COAL COMPANY MACHINE DRILLS TEST HOLES AS IT SEARCHES FOR COAL PRIOR TO DIGGING BY STRIP MINING POWER SHOVEL. NEAR... NARA .tif Scope and content General notes Local identifier DA Environmental Protection Agency NARAAuthor Calonius Erik Photographer File COALCOMPANYMACHINEDRILLSTESTHOLESASITSEARCHESFORCOALPRIORTODIGGINGBYASTRIPMININGPOWERSHOVEL