DescriptionAgua Fria ("Cold Water" in Spanish) was the original county seat of Mariposa County. From California Historical Landmarks:
One-quarter mile north of Carson Creek, a tributary of Agua Fria Creek, was located the town of Agua Fria, in 1850-1851 the first county seat of Mariposa County. One of the original 27 counties in California, Mariposa County comprised one-sixth of the state - all of what is now Merced, Madera, Fresno, Tulare, Kings and Kern Counties - until 1852, while mining was the main industry of [the] region.
Location and Vicinity Map