Martin, San Clemente Island
From Islapedia
Martin, San Clemente Island , California, W. E. Greenwell, 1862; S. Forney, 1878.—Six hundred meters from the sea, on the north end of the same general ridge as Rock [triangulation], and Bluff [triangulation], near the brow of the hill, and 600 meters northeast of road. (Note 3, p. 615. [[Annual Report of the Director, U.S. Coast & Geodetic Survey, 1904]