By Irviné J. Witkind, U.S. Geoloéical Survey; Paul A ... · 414 475 36 R , 730000 FEET (IDAHO)...

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Transcript of By Irviné J. Witkind, U.S. Geoloéical Survey; Paul A ... · 414 475 36 R , 730000 FEET (IDAHO)...