Map no. 4 from the valley of the mud lakes to the Pacific Ocean (Calif.) [cartographic material] : from explorations and surveys made under the direction of the Hon. Jefferson Davis, Secretary of War - Davis, Jefferson, 1808-1889; Beckwith, E. G. (Edward Griffin), 1826-1909; Egloffstein, F. W., 1824-1885; Siebert, Selmar (U.S. War Dept.], 1855)