Map of placer mines & quartz locations in the vicinity of Williams Creek, Cariboo District, B.C. / surveyed and drawn by Amos Bowman, mining engineer ; assisted by James McEvoy ; drawn for photolithography by L.N. Richard.Geological Survey of Canada[1886?]"To illustrate report by A. Bowman."[Map no.] 364 -- Verso.Includes profile and text.cartographic