Ore, Tin and Marble Mines of San Bernardino County ...
Ore, Tin and Marble Mines of San Bernardino County, California. In 1853 or 1854 one Leonardo Serrano, a native Californian, applied to the Board of Land Commissioners, then in session in California, claiming a Mexican grant of five leagues of land, including that tract known as the Rancho de Temescal. After a careful investigation, his claim ...