Mariposa County California Gold Production

Mariposa County, the southernmost of the Mother Lode counties, has had a long and productive mining history. Most of the gold has come from lode mines on the Mother Lode and West Belt and lode and placer mines in the Hornitos district. Quaternary gravels have been productive along the Merced River and near Mormon Bar.

Before 1900, unrecorded amounts of gold were mined from Tertiary placers in the Blanchard district in the Jawbone Ridge area and on the ridge between Moore and Jordan Creeks.

Gold production of Mariposa County for 1880-1959 was about 2,144,500 ounces: about 583,500 ounces came from placers and about 1,561,000 ounces came from lodes. Production before 1880 has not been determined.

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