The NPS Kennecott Drawing:
This rather simplified drawing shows some of the existing buildings at Kennecott in the context of the Nicolai greenstone and the Chitistone limestone. It shows the Bonanza mine at 4,000 feet, but what that actually means is 4,000 feet above Kennecott, which is at the 2,100 foot level for track grade. Also, Bonanza Ridge tops out at about 7,000 feet, not 6,000 feet.
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