Ledge, San Clemente Island

Ledge, San Clemente Island , California, William E. Greenwell, 1862; Stehman Forney, 1878.—On a round, flat knoll about midway between the northeast and southwest sides of the island, the third hill east of Rock [triangulation], and 1 ¾ miles northeast of Seal Harbor. In 1862 the station was marked by a hole drilled in the fixed rock. In 1878 it was remarked with a leaden bolt and copper nail marking the center. Holes were drilled in the fixed rock northward from the station, 5.4 feet; southeast, 5 feet, and southwest, 4 feet.[[Annual Report of the Director, U.S. Coast & Geodetic Survey, 1904]