Anderson Marsh State Historic Park

Lower Lake (formerly Grantville) is a census-designated place (CDP) in the southern Clear Lake region of Lake County, in northern California. Lower Lake is also an Indian rancheria of the Koi Nation people.

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 now defunct, and has been designated California Historical Landmark #429.

Lower Lake Community United Methodist Church is a United Methodist Church in the town of Lower Lake, California.

Koi was the more southerly of the two main Pomo villages in the southeastern section of Clear Lake in Lake County, California, United States. Both it and the other triblet center, Elem, were located on islands near the shore and controlled territory on the mainland. It was located on Lower Lake Island, also called Indian Island.

The Clayton Fire was a wildfire that started on August 13, 2016 just south of Lower Lake in Lake County, California. The fire burned a total of 3,929 acres (15.90 km2) and destroyed 300 buildings, before it was fully contained on August 26. Damin Pashilk, a construction worker from Clearlake was arrested and facing 17 counts of arson related to the Clayton Fire and other fires.

KMOB-LP (100.3 FM) is a radio station broadcasting an urban music format. Licensed to Clearlake, California, United States, the station serves the Clearlake-Ukiah area. The station is currently owned by Minds of Business Inc.

Clearlake is a city in Lake County, California. Clearlake is 4.5 miles (7.2 km) north-northwest of Lower Lake, at an elevation of 1,417 feet (432 m). As of the 2020 census, the city had a total population of 16,685, up from 15,250 in 2010. It takes its name from Clear Lake.

Clearlake Highlands is a former unincorporated community now incorporated in Clearlake, in Lake County, California. It is located on the north shore of the southeast end of Clear Lake, just south of the village of Clearlake Park, 15 miles (24 km) east-southeast of Lakeport, at an elevation of 1348 feet (411 m).Clearlake was originally settled by Americans in the late 1860s. Prior to settlement by Americans the area was inhabited by Pomo Indians. Their artifacts and grave sites have been found along Cache Creek at the Southern city limit as well as the area around Borax Lake in the northwest portion of the city. Clearlake remained a farming and ranching community until the 1920s when it became a resort destination along with other areas in Lake County. A large portion of the area which was to become the City of Clearlake was subdivided in 1925. Most of the city lots are only 50' by 100' feet and none of the infrastructure was established at the time of subdivision. A majority of the roads were never paved and some only exist on paper. Clearlake has historically depended on tourism as its main industry with the attraction being Clear Lake. This has been a boom or bust cycle over the decades depending on several factors. Clear Lake is California's largest natural lake and boasts itself as being "The Bass Capital of the West".

Eastlake Landfill is a Class III landfill located in Clearlake, California.

Seigler Canyon Creek (also known as Siegler Creek and Sigler Creek) is creek in Lake County, California.

Rancho Lupyomi (also called "Laguna de Lup Yomi") was a Mexican land grant in present-day Lake County, California given in 1844 by Governor Manuel Micheltorena to Salvador Vallejo and his brother Juan Antonio Vallejo. Rancho Lupyomi encompassed present-day Clearlake. Rancho Lupyomi was one of three land grants (along with Rancho Guenoc and Rancho Collayomi) in Lake County. Lake County was formed in 1861 of land taken mainly from Napa County and the northwest portion taken from Mendocino County.

Thurston Lake is a lake adjacent to the southeast side of the much larger Clear Lake. in Northern California. In the past, volcanic deposits formed a ridge separating Thurston Lake from Clear Lake. The lake is notably turbid, the result of clayey runoff from nearby Manning Flat.