History Of Phosphate Rock Mining In Idaho

Jan 01 2004 Phosphate-rock mines in Idaho refer to Appendix A for corresponding mine names. The history of production of the Western Phosphate Field 5 5 J.R. Simplot Co. in 1960 and was relocated to Pocatello. The same year two other plants were opened in Conda and Kellogg and western production reached 19 of the US total Fig. 3-2.

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