Hancock, W. B.McKinnis, Charles2019-01-162019-01-161940EPM-070-06-002http://hdl.handle.net/20.500.11867/15272Single 12 x 8 inch sheet, tri-folded. Printed recto and verso. Severe water staining. Front cover annotated in pencil. Date est."Mr. Luke G. Bayley, resident of Yakima, an expert mining engineer will have engineering charge of this property. He has been in charge of mines for the past 25 years as a practical miner being employed by the federal mining and smelting company at the Standard Mine at Mace, Idaho."A description and general report of the Prosperity Mining Claims in Yakima.