Blackhawk Museum

Blackhawk-Camino Tassajara is a former census-designated place (CDP) in Contra Costa County, California, near the town of Danville. The unincorporated area consisted of the Blackhawk planned community and the surrounding Camino Tassajara area. At the 2000 census, the CDP's population was 10,048. The CDP was split between Blackhawk and Camino Tassajara before the 2010 census.

The Hemme Hills are a mountain range in Contra Costa County, California.

Blackhawk is an unincorporated planned community and census-designated place located in Contra Costa County, California, United States, east of Danville and Oakland. As of the 2010 census it had a population of 9,354. Governed by county rules/regulations and a homeowner association (HOA), Blackhawk has a country club, two golf courses, sports complex, restaurants, and the adjacent Blackhawk Plaza. 24-hour security plus additional law enforcement contracted through the Contra Costa County Sheriff's Office is provided by HOA dues. The area is covered by the San Ramon Valley Fire Protection District. The ZIP code is 94506. The community is inside area code 925. Blackhawk is known for its uniform architecture and suburban lifestyle, with the median household income being $167,875 and median home price of $1,117,500.

Sycamore Valley Regional Open Space Preserve is a regional park in Contra Costa County, California, outside of Danville, California, United States that is part of the East Bay Regional Parks (EBRPD) system.

The Sherburne Hills are a mountain range in Contra Costa County, California.

Camino Tassajara (Spanish for "Path of Carne Seca") is a census-designated place in Contra Costa County, California. Camino Tassajara sits at an elevation of 814 feet (248 m). The 2010 United States census reported Camino Tassajara's population was 2,197.

Dougherty Valley High School (commonly Dougherty, Dougherty Valley, Dougherty Valley High, DVHS, or DV High) is a public high school located in the Windemere development of San Ramon, California, United States. The valley name comes from James Witt Dougherty, a 19th-century landowner and local politician. It is one of four high schools in the San Ramon Valley Unified School District (SRVUSD), along with California High School, San Ramon Valley High School, and Monte Vista High School. Constructed by Shapell Industries of California and Windemere Ranch Partners BLC, Dougherty was the first developer-built school in the SRVUSD. The school opened its doors in 2007. Dougherty's nickname is the Wildcats, and its school colors are navy, Columbia blue, and silver. It is known for its state-of-the-art campus, which features a performing arts center and aquatics center in a joint-use agreement with the city. Dougherty is the top school in the district based on Academic Performance Index. The school is also home to over 200 clubs and many afterschool activities.

The Athenian School is a selective college preparatory and boarding school located in Danville, California, United States. Athenian educates students in grades 6–12 on an approximately 75-acre (300,000 m2) campus at the base of Mt. Diablo, located in the San Francisco Bay Area in Northern California. Athenian was founded by Dyke Brown in 1965. Athenian is composed of roughly 170 students in the middle school (grades 6–8) and 360 students in the high school (9–12), which is also known as the upper school. Approximately 60 students and 18 teachers live on campus full-time. The average class size is 14. According to Niche, Athenian is ranked 147th on the 2020 list of Best Private High Schools in America and the number one school in Contra Costa County. Athenian is also ranked as the 40th best boarding school in the United States.Athenian holds an average SAT score of 1385 (out of 1600) and an average ACT score of 32. According to Boarding School Review, this gives Athenian the 8th highest SAT score of any boarding school in the United States.

Diablo (Spanish for "Devil") is a census-designated place (CDP) in Contra Costa County, California, United States. The population was 1,158 at the 2010 census. It is located 2.5 miles (4.0 km) east-northeast of Danville.

Pacific Air Lines Flight 773 was a Fairchild F27A Friendship airliner that crashed on May 7, 1964, near Danville, California, a suburb east of Oakland. The Thursday morning crash was most likely the first instance in the United States of an airliner's pilots being shot by a passenger as part of a mass murder–suicide. Francisco Paula Gonzales, 27, shot both pilots before turning the gun on himself, causing the plane to crash, killing all 44 aboard.As of May 2021, the crash of Flight 773 remains the worst incident of mass murder in modern California history, one death more than the subsequent Pacific Southwest Airlines Flight 1771 hijacking in 1987.