Documents from the Roland Mulchay mining collection. Description: Field & interoffice notes 1950's & 60's, Phosphate Min. Castle Dome by N. Peterson, 1947; Hydrothermal Alteration by G.Quick 1946.
Summary
Documents from the Roland Mulchay mining collection. Description: Field & interoffice notes 1950's & 60's, Phosphate Min. Castle Dome by N. Peterson, 1947; Hydrothermal Alteration by G.Quick 1946.