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Mariposa Courthouse

5088 Bullion Street

United States

Mariposa County CourthouseThe Mariposa County Courthouse is the oldest courthouse in California and the oldest one west of the Rocky Mountains that is still being used. Since 1851, when Mariposa was a vibrant trading center for miners, the courthouse was the place where landmark mining laws were tried, and consequently, set legal precedent for federal mining law.

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