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.