Letter to his mother. Rinker told his mother not to worry about him working in the mines. He explains how above ground work is safe and below ground work is where it is dangerous.
Scale [ca. 1:2,400] 1 in.=200 feet1 map ; col. ; 20 x 16 cm ; Eureka Con. Mine is in the Eureka Mining District in Nevada ; "Juliue Bien & Co. lith." ; "U.S. Geological Survey. Annual report 1883, pl. XXXIII"--Upper right margin ; Library's copy has "Nev." printed in pencil in upper right corner