Marsh Creek State Park (California)

The Stone House of John Marsh is a historic stone house in Contra Costa County, California, built in 1855–56. It is now included in the newly designated Marsh Creek State Park. It has not been officially opened to the public because of safety concerns, but restoration began in 2006 and is continuing as of October 2017.

Heritage High School is a high school in Brentwood, California, United States. It opened on August 1, 2005, with a freshman and sophomore class.

Round Valley Regional Preserve is a regional park just outside Antioch, CA and Brentwood, CA that is part of the East Bay Regional Parks (EBRPD) system. It is on Marsh Creek Road, approximately 5.2 miles (8.4 km) west of the intersection with Vasco Road. The park was begun in 1988, when Jim Murphy sold 700 acres (280 ha) of land to EBRPD. The land originally belonged to Mr. Davis' grandfather Thomas Murphy, an Irish immigrant, who had purchased the land in 1878 for a farming and ranching operation. The preserve has since expanded to encompass 1,911 acres (773 ha).The Round Valley parking area is one of the two staging areas and points of departure for tour buses that carry passengers into Vasco Caves Regional Preserve. Morgan Territory Regional Preserve adjoins Round Valley Regional Preserve on the Southwest. The park is near the edge of the Diablo Range, and its wooded hills are a sharp contrast with the almost treeless flat land of the Central Valley, which begins a few miles farther east.

Brentwood, or “Corn Town”, is a city in Contra Costa County, California, United States. It is located in the East Bay region of the San Francisco Bay Area. The population is 66,854 as of 2022, an increase of 287% from 23,302 at the 2000 census.Brentwood began as a community in the late 19th century. The community is still known throughout the Bay Area for its agricultural products - primarily its cherries, corn and peaches. Due to urban sprawl many of the old farms and orchards have been replaced by suburban developments since 1990. Brentwood is increasingly residential, with the rate of population growth in the triple digits during the 1990s and 69% from 2000 through 2010. An official estimate showed the population increased nearly 21% during the period 2010 to 2016.

Liberty High School is located in Brentwood, California, United States. Liberty High School is a comprehensive 9–12 grade high school serving approximately 2800 students. It was founded in 1902 as Liberty Union High School.

Dozier-Libbey Medical High School is a public school located in Antioch, California, with a focus on health and medicine. The school is named for Dr. Thomas (Tom) Dozier and Dr. Joseph H. (Joe) Libbey, 2 local physicians who practiced in the area from the 1930s through the late 1980s. With English and science test scores that are above the state average, this school has earned awards such as the California Gold Ribbon Award and has been recognized as one of the best high schools in the U.S. by U.S. News & World Report. The school's mission statement reads, "DLMHS exists to challenge students with exciting rigorous instruction that prepares them with the knowledge and experience to succeed in health science professions and college."

The Port Costa School was built to serve the community of Port Costa, California. Residents voted to fund the school with a bond in April 1911, and construction began later that year. The classic revival style building was designed by architect William Wilde, who immigrated to America from Denmark. The school opened in 1912 and closed in 1966 due to a declining population. At this point, it had become part of the John Swett Unified School District.The school building now serves as an event space and is maintained by the Port Costa Conservation Society.

The Shannon-Williamson Ranch, is located in Antioch, California. The Williamson family settled in Antioch in 1867. They were granted a homestead in 1874 signed by then U.S. President Ulysses S. Grant. The original house burned down in 1895. The current house that stands is the one that was rebuilt after the fire. The ranch operated from 1875 to 1949. The ranch was saved in 1987 by the efforts of one of the inhabitants of the house Donald Williamson. The once 4,000-acre (1,600 ha) ranch raised crops such as wheat, barley, hay, and livestock. The ranch currently retains approximately 3 acres (1.2 ha) of the former ranch including a two-story Italianate house, 3 barns and several other buildings including outbuildings and a small orchard. The ranch is currently closed to the public and there are currently no plans for the future of the house and property. The surrounding area has been named after the ranch such as the housing subdivision and the shopping mall directly across the street from it. The ranch property has a fence that surrounds the entire property.

Deer Valley High School in Antioch, California, is a public secondary school serving southeast Antioch in Contra Costa County, California. It opened in 1996. In 2007, the Antioch Unified School District named Scott Bergerhouse and Clarence Isadore co-principals. The co-principal model has previously been implemented in some larger schools in southern California. In February 2010, Deer Valley and the rest of the AUSD schools were informed that they would issue a uniform policy in the second semester of the 2010–2011 school year. This policy proved to be a failure for the school, partly due to the policy taking effect halfway through the year. The policy was discontinued by its second month.

Freedom High School is located in Oakley, California, United States. It opened in 1996 on the grounds of Liberty High School, before moving to the new campus, as a part of the Liberty Union High School District. The current Liberty Union High School District contains Freedom, Liberty, Heritage, and Independence High Schools.

Rancho Los Méganos was a 13,316-acre (53.89 km2) Mexican land grant in the southwestern Sacramento-San Joaquin Delta region of present-day Contra Costa County, California. It was given in 1835 by Governor José Castro to José Noriega. "Méganos" means "sand dunes" in Spanish. Rancho Los Méganos extends eastward from present-day Antioch along the San Joaquin River to the Old River. The rancho lands included present-day Oakley, Knightsen, and Brentwood.

West Hartley was an unincorporated community in eastern Contra Costa County, California. It was located 7 miles (11 km) northeast of Mount Diablo, at an elevation of 440 feet (134 m). It is now a ghost town. It was a mining town for the nearby coal mines.It was founded in the late 1880s and named for England's West Hartley coal mine.