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Imperial County California Crushed Stone Mines The

1963 Geology and Mineral Resources of San Diego County, California. California Division of Mines and Geology, County Report 3. San Francisco. Woodward, Lucinda 1981 Cuyamaca Rancho State Park, An Overview of Its Euroamerican History. In A Cultural Resources Inventory and Management Plan for Prescribed Burning at Cuyamaca Rancho State Park, San