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pay ore1865
1865 S. BowlesAcross the Continent xv. 147 One company has spent over a million dollars in the vain pursuit of ‘pay ore;’.
1997 Roanoke Times & World News (Roanoke, Va.) (Nexis) 20 July 1 Cripple Creek is a placer..mine—a huge open pit where workers strip away topsoil and dig up dirt and gravel, called pay ore.