Agua Fria California Western Mining History
Agua Fria had a post office from 1851 to 1862. The following text is from a historical marker at the town site: quot;The Townsite of Agua Fria, Californiaquot; quot;This mining town became the seat of justice of Mariposa County when on February 18, 1850, the state legislature divided the state into 27 original counties.