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Preston Road and the copper mines of southern Mariposa County

Preston Road is an approximately 8.5-mile rural dirt highway located in Sierra Nevada foothills southern Mariposa County.  This particular highway corridor was commissioned in 1876 to connect copper mining town of Buchanan in what is now Madera County to the Stockton-Los Angeles Road at the Merced County line near Raynor Ranch.  Preston Road is named after the Preston family which settled in Mariposa County circa 1857 and owned a nearby ranch.  The Preston Road corridor passes near numerous copper mines centric to Green Mountain and Copper Hill.  The copper smelter seen as the blog cover was part of the Goodview mine and is located on Preston Road at West Westfall Road.   Part 1; the history of Preston Road and the southern copper mines of Mariposa County Mariposa County was incorporated on February 18, 1850, as one of the original counties following California becoming an American state.  Mariposa County initially was by far the largest county by area...
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