Greasertown, California

Double Springs, California, is a historical site of the former town in Calaveras County, now in Valley Springs, California. The town was built during the California Gold Rush. Double Springs was founded on February 18, 1850, two years after the start of the California Gold Rush. Double Springs grew so quickly that it was the seat of Calaveras County in 1850. The County seat was a coveted honor and a year later, in 1851, Jackson was able to claim the title, but only for a year. In 1852 by popular vote, Mokelumne Hill was able to become the County seat until 1866 when it move to San Andreas. The Double Springs was in what is called the California Mother Lode mining region. The Double Springs old courthouse was built in 1849, and was moved, its original spot is now rural land. A foundation mark was placed at the site of the old courthouse, installed by the Calaveras Chamber of Commerce. The courthouse is now at the Calaveras County Museum Complex in San Andreas. Double Springs received its name from two springs nearby springs that are between the low hills nearby. Alexander R. Wheat built a large house from squared sandstone in 1860, the house is still there. One of the other remains of Double Springs is a family cemetery. Double Springs site is about 3.6 miles east of Valley Springs and is mostly rural land near Youngs Creek. The site of Double Springs is a California Historical Landmark No. 264.

New Hogan Lake is an artificial lake in the foothills of the Sierra Nevada in Calaveras County, California, about 30 miles (48.3 km) northeast of Stockton. It is formed by New Hogan Dam on the Calaveras River, whose North and South forks combine just upstream of the lake, and has a capacity of 317,000 acre⋅ft (391,000,000 m3). The earth-fill dam, completed in 1963, is 210 feet (64.0 m) high from the crest of the dam to the original streambed. The reservoir was first filled in 1965. There is a small hydroelectric plant at its base. It is owned by the United States Army Corps of Engineers and provides flood protection, drinking water, electricity and water for irrigation. There is also recreation available, such as boating, fishing, water skiing and camping.

New Hogan Dam is an embankment dam on the Calaveras River, a tributary of the San Joaquin River in central California. The dam lies east of Rancho Calaveras and impounds New Hogan Lake in the foothills of the Sierra Nevada. Built by the U.S. Army Corps of Engineers (USACE), the 210-foot (64 m)-high dam was completed in 1963. In 1986, the Modesto Irrigation District contracted with the USACE to build a base load hydroelectric plant at the dam with a capacity of 3.15 megawatts. The original Hogan Dam was completed in September 1930 and named for Walter Byron Hogan -- a Stockton, California City Engineer and later City Manager.

Valley Springs (formerly known as Spring Valley and Valley Spring) is a census-designated place (CDP) in Calaveras County, California, United States, in the foothills of the Sierra Nevada Mountain Range. Valley Springs is registered as a California Historical Landmark, number 251.

The Pioneer Cemetery, formerly known as the North Branch Cemetery, is a defunct cemetery established in c. 1851, and located along California State Route 12 in San Andreas, Calaveras County, California. It is the oldest known cemetery in Calaveras County.The site is listed as a California Historical Landmark (number 271), by the California Office of Historic Preservation since September 3, 1937.

Chili Gulch (also spelled Chile Gulch) is a gulch in Calaveras County, California. This five-mile gulch was the richest placer mining section in Calaveras County. It received its name from Chileans who worked it in 1848 and 1849, and was the scene of the so-called Chilean War. The largest known quartz crystals were recovered from a mine on the south side of the gulch. Chili Gulch is registered as California Historical Landmark #265.

Paloma (Spanish for "dove"; formerly, Fosteria and Frenchman's Ranch) is an unincorporated community in Calaveras County, California. It lies at an elevation of 1362 feet (415 m) and is located at 38°15′34″N 120°45′48″W. The community is in ZIP code 95252 and area code 209. Gwin Mine, Paloma, and Lower Rich Gulch were mined for placer gold in 1849, and quartz was discovered by J. Alexander in 1851. Property here was acquired by William M. Gwin, California's first U.S. Senator, in 1851. After yielding millions of dollars in gold, the Gwin Mine closed in 1908. The town today is registered as California Historical Landmark #295. The town's post office operated from 1903 to 1918, when the name was Fosteria - from the Foster family, early pioneers.

The John J. Snyder House is a historic house located at 247 W. St. Charles Street in San Andreas, California. Built in 1895, the house was designed in the Queen Anne style; it has been called "one of the largest and finest" houses in the style in Calaveras County. The front of the house has a raised central entrance with a porch; the porch's frieze is made up of turned spindles. A slanted bay with a large circular window is situated next to the entrance. The house has a gablet roof with a smaller gable over the front bay; the small gable includes a fan-shaped window surrounded by a roughcast infill decorated with colored glass and stones.John J. Snyder, the house's first owner, was an early settler of San Andreas who later became a district attorney in the area. Snyder lived in the house until his 1899 death. Snyder's wife Elizabeth lived in the house until 1938, after which the house became a rental property.The house was added to the National Register of Historic Places on August 2, 1984.

San Andreas (Spanish for "St. Andrew") is an unincorporated census-designated place and the county seat of Calaveras County, California. The population was 2,783 at the 2010 census, up from 2,615 at the 2000 census. Like most towns in the region, it was founded during the California Gold Rush. The town is located on State Route 49 and is registered as California Historical Landmark #252.

The Calaveras County Courthouse is a historic courthouse building in San Andreas, California. The brick courthouse was built in 1867 and contained the county's courtroom, jail, and sheriff's office; until 1888, executions were also conducted in the building. The county's Hall of Records was built in front of the courthouse in 1893; the two buildings nearly touch and are considered part of the same complex. The building's jail held outlaw Black Bart, a notorious Northern California highwayman, during his 1883 trial. In 1966, the county moved its courthouse to a new building; the old courthouse is now the Calaveras County Museum, which is operated by the Calaveras County Historical Society.The Calaveras County Courthouse was added to the National Register of Historic Places on February 28, 1972.

The Thorn House is a historic house located at 87 E. St. Charles Street in San Andreas, California. The house, which was built in 1861, was designed in the Carpenter Gothic style. The design features decorative bargeboards, a steeply sloping roof, a porch with a second floor veranda, and nine French doors opening to the outside. The brick used to build the house was imported from Stockton. The house also includes a landscaped garden covering nearly 3 acres (1.2 ha). Calaveras County Sheriff Ben Thorn built the house; Thorn was well known for capturing outlaws such as Black Bart, and historian Richard Coke Wood called him "one of the greatest men in the history of Calaveras County".The Thorn House was added to the National Register of Historic Places on February 23, 1972.

Campo Seco (Spanish for "Dry Field") is an unincorporated community in Calaveras County, California. It sits at an elevation of 564 feet (172 m) above sea level and is located at 38°13′38″N 120°51′12″W. The community is in ZIP code 95226 and area code 209. Founded by Mexicans in 1849, the mining camp was quite cosmopolitan, with forty different nationalities of miners. The town was almost destroyed by a fire in 1854, but as the placers were still producing, much of the town was rebuilt. Most of the buildings that are still standing date from after the fire. The town also contains the largest living cork oak tree in California, which was planted in 1858. The town today is registered as California Historical Landmark #257. The first post office was established in 1854.