Klamath Mountains yielded about 39 per cent of the total output of Chromium in 1918

The subjoined list includes the principal chrome mines and prospects in the Klamath Mountains in 1918. In figure 1 many of the deposits of chrome ore are shown by dots and numbered serially in each county. The numbers are given in the list. Mines that shipped ore in 1918 are designated by ” S,” those mining but not shipping by ” M,” and prospects by ” P.”

Below: FIGURE 1, Map of the Klamath Mountains, California and Oregon, showing by dots, numbers, and outlines the location of deposits of chromite in areas of serpentine.