Community Observatory

Cold Springs (formerly, Cold Spring) is a census-designated place in El Dorado County, California. It is located 4 miles (6.4 km) west of Placerville, at an elevation of 1207 feet (368 m). It has a population of 446. A post office operated at Cold Spring (as it was then called) from in or before 1852 to 1874.

Perks Corner is an unincorporated community in El Dorado County, California. It is located 2.5 miles (4.0 km) west-southwest of Placerville, at an elevation of 1762 feet (537 m).

Placerville Speedway is a 1/4 mile dirt track located in Placerville at the El Dorado County fairgrounds in the Sierra Nevada foothills of eastern California.

The El Dorado County Fair is held in Placerville, California Every Father's Day weekend. Started in 1859 (current site 1939). The El Dorado County Fair features four full days of exhibitions contests and competitions, concerts and events, carnival rides, and Fair food galore. Junior Livestock Auction and still exhibits, such as photography, food items, artwork, homemade wine and homebrew are all on display throughout the Fair's four-day run. Friday night events in the grandstands usually consist of Mutton Bustin' and Humpz and Hornz Bull Riding. Other favorite and traditional activities, such as cooking demonstrations, Free Kid Workshops (usually sponsored by Home Depot) and games including Funnel Cake Eating Contests (for young and old alike), bean spitting contest, Big Wheels Races (usually sponsored by Gold Country Ace Hardware & Hobbies) and more all hosted by Flo the Clown! The famous Annual John M. Studebaker Championship Wheelbarrow Races take place on Sunday evening in the Grandstands. The Father and Child Look-A-Like Contest happens on the main stage Sunday as part of the Father Day activities. The Fair concludes Sunday night at 10 p.m. on Father's Day.The fair was cancelled in 1917–18 because of World War I, 1942–45 because of World War II and 2020 because of the COVID-19 pandemic.2021's fair dates are in mid-September.

Gold Hill (formerly, Granite Hill) is an unincorporated community in El Dorado County, California. It is located 2.5 miles (4.0 km) south of Coloma, at an elevation of 1621 feet (494 m).

The Wakamatsu Tea and Silk Farm Colony is believed to be the first permanent Japanese settlement in North America and the only settlement by samurai outside of Japan. The group was made up of 22 people from samurai families during the Boshin Civil War (1868–69) in Japan preceding the Meiji Restoration. The group purchased land from Charles Graner family in the Gold Hill region after coming to San Francisco in 1869. Though the group was able to successfully show their produce during the 1869 California State Agricultural Fair in Sacramento and the 1870 Horticultural Fair in San Francisco, the farm as a Japanese colony only existed between 1869 and 1871. Okei Ito, the first known Japanese woman to be buried on American soil, has her grave on the land. The Veerkamp family purchased the farm following the withdrawal of financial support from financier Matsudaira Katamori (1835–93). In 1969, the same year as the Japanese American centennial, Ronald Reagan, then governor of California, proclaimed the colony to be California Historical Landmark No. 815. The family preserved the heritage of the farm and Okei's grave for 137 years until the American River Conservancy purchased the land in November 2010, with the National Park Service placing the site on the National Register of Historic Places at a level of "national significance". American River Conservancy offers private and public tours of the property, including Okei Ito's gravesite.

El Dorado (Spanish for "The Golden") is an unincorporated community in El Dorado County, California. It is located 4 miles (6.4 km) southwest of Placerville, at an elevation of 1608 feet (490 m). The population was 4,096 at the 2000 census. The town is registered as California Historical Landmark #486. The ZIP code is 95623. The community is inside area code 530.

Kingsville (formerly, Kingville) is an unincorporated community in El Dorado County, California. It is located 5 miles (8 km) southwest of Placerville, at an elevation of 1532 feet (467 m).

El Dorado High School is a public high school in Placerville, California, United States. EDHS is one of six high schools in the El Dorado Union High School District, it is a California Distinguished School.

Placerville Pioneer Jewish Cemetery is a no longer active Jewish cemetery founded in 1854 by the Placerville Hebrew Benevolent Society, and is located in Placerville, California. The last burial happened in 1968. It is a private site operated by the Commission for the Preservation of Pioneer Jewish Cemeteries and Landmarks in the West and is not open to the public.

Placerville Union Cemetery, formerly Union Cemetery, is a burial ground formed in 1871 by a group of fraternal organizations, and located in Placerville, California. It had been established as a private cemetery, and in 2005 the management was switched to the El Dorado County.

Diamond Springs (formerly, Diamond Spring and Diamond) is a census-designated place (CDP) in El Dorado County, California, United States. It is part of the Sacramento–Arden-Arcade–Roseville Metropolitan Statistical Area. The population was 11,037 at the 2010 census, up from 4,888 at the 2000 census. The town is registered as California Historical Landmark number 487. It lies at an elevation of 1791 feet (546 m).