Rich Gulch, California

Rich Gulch is an unincorporated community in Calaveras County, California, east-northeast of Mokelumne Hill. It lies at an elevation of 1903 feet.
Rich Gulch was the seat of Calaveras County at one time, and at its 1850s peak was a significant gold-mining center home to some five thousand residents. The town saw a secondary mining boom in the 1880s. The 1862 hotel was still standing, abandoned, in 1920.
A post office was opened at Pleasant Springs in 1855. The name was changed to Rich Gulch in 1857. The post office was closed in 1867, re-established in 1887, and closed for good in 1903.