131. Columbia River
Patterson, C. P. (Carlile Pollock), 1816-1881, Hilgard, J. E. (Julius Erasmus), 1825-1891, and Rockwell, Cleveland, 1837-1907. Triangulation by C. Rockwell Assist. ; Topography by C. Rockwell and J.J. Gilbert Assist. ; Hydrography by J.J. Gilbert ; Issued, in June 1878 C.P.... U.S. Coast Survey,.