One of these relatively small granitic plutons was emplaced 67 -- 87 Ma .
One of these relatively small granitic plutons was spawned one of the more profitable precious metal deposits in the Death Valley area , giving rise to the town and mines of Skidoo .
One of these relatively small granitic plutons was emplaced 67 -- 87 Ma and spawned one of the more profitable precious metal deposits in the Death Valley area , giving rise to the town and mines of Skidoo .