Lower Lake Stone Jail Lower Lake Stone Jail Lower Lake Stone Jail, in Lower Lake, California, is a one-room jail claimed to be the smallest jail in the United States, was erected in 1876 of stone locally quarried and reinforced with iron. During the days of the first quicksilver operations of the Sulphur Bank Mine, lasting from 1873 to 1883, rapid town growth and the urgent need for civil order necessitated the building of a jail. Stephen Nicolai, one of the first stonemasons in Lower Lake, built the jail from local materials with the help of Theodore and John Copsey. The tiny jail is
Barr Lake State Park inside the park on the northwest side of the lake. Barr Lake is fed by the Burlington Ditch, which is diverted from the South Platte River. The namesake Barr Lake derives its name from one Mr. Barr, a railroad official. Barr Lake State Park Barr Lake State Park is a Colorado state park established in 1977 in Adams County near Brighton, Colorado, USA. The park has of trails, including an trail that circles Barr Lake. Fishing and boating are allowed in the northern half of the park. The southern half is a wildlife refuge, with several wildlife viewing stations and