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SE C T IO N IV — DOMEST IC PROB LE MSOFNON FU E L MINERALS
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Should the discovery requirement be kept or abolished?

P h i l i p J . S h e n o n (Consulting Geologist, Salt Lake City) : I would suggest that some modifications be made in the discovery part of the Location Act. In the district that I am most familiar with, the Coeur d’Alene dis­ trict of Idaho, the ore bodies are deep, and very often exploration work is based solely on structure and rock alteration. Millions of dol­ lars are spent on those two criteria. Shafts are sunk 3,000 feet in some cases to prospect favorable-looking areas. I think alteration and indications of ore by geophysical methods should constitute a satisfactory discovery.