Las Trampas Regional Wilderness

Little Hills Picnic Ranch, sometimes called the "Ranch at Little Hills" or just "Little Hills" is a park in Contra Costa County, California near San Ramon. It is located at 18013 Bollinger Canyon Road and is adjacent to Las Trampas Regional Wilderness. Managed by the East Bay Regional Parks District (EBRPD), it is classed as a "picnic park," accessible only by reservation. There are no facilities for camping.

Rocky Ridge is a 2,020 ft (620 m) ridge in the Inner Coast Ranges in western Contra Costa County, California, in the San Francisco Bay Area. Being the second-highest mountain in the county, it is visible from much of the surrounding area. The ridge is a very prominent feature in the geography of the towns of Lafayette, Moraga and Orinda, California.

Las Trampas Peak is a 1,827 ft (557 m) peak in the Inner Coast Ranges in western Contra Costa County, California, in the San Francisco Bay Area.

Las Trampas Ridge is an 1,827 ft (557 m) ridge in western Contra Costa County, California, in the San Francisco Bay Area. It comprises the western side of the San Ramon Valley.

The Eugene O'Neill National Historic Site, located in Danville, California, preserves Tao House, the Monterey Colonial hillside home of America's only Nobel Prize-winning playwright, Eugene O'Neill.

Alamo (Spanish: Álamo; meaning "Poplar tree") is an unincorporated community and census-designated place (CDP) in Contra Costa County, California, in the United States. It is a suburb located in the San Francisco Bay Area's East Bay region, approximately 28 miles (45 km) east of San Francisco. Alamo is equidistant from the city of Walnut Creek and the incorporated town of Danville. As of the 2020 census, the population was 15,314. Police services are provided by the Contra Costa County Office of the Sheriff. Fire and EMS services are provided by the San Ramon Valley Fire Protection District. Alamo has a median household income of $300,000 (as of 2022). In August 2007, a group of citizens launched a new initiative to incorporate the community, the latest in a series of attempts that go back to the early 1960s or before; it was defeated by referendum in March 2009. Previous failed Alamo incorporation efforts always included parts of other nearby unincorporated areas: Alamo-Danville (1964) and Alamo-Danville-San Ramon (1976).

The Iron Horse Regional Trail is a rail trail for pedestrians, horse riders and bicycles in the East Bay Area in California. This trail is located in inland central Alameda and Contra Costa counties, mostly following a Southern Pacific Railroad right of way established in 1891 and abandoned in 1977. The two counties purchased the right of way at that time, intending to use it as a transportation corridor; the Iron Horse Trail was first established in 1986. In 2003, BART proposed to also use the right-of-way for a DMU line from Walnut Creek station to Tracy via Pleasanton.The trail passes through the cities of Pleasanton, Dublin, San Ramon, Danville, Alamo, Walnut Creek, Pleasant Hill and Concord. When completed, the trail will span from Livermore in central Alameda County to Suisun Bay at the northern edge of Contra Costa County, a distance of over 40 miles (64 km) connecting two counties and nine communities. The trail also directly connects to both the Dublin/Pleasanton and Pleasant Hill BART stations. The trail is maintained by the East Bay Regional Park District. It is a wheelchair accessible paved trail along with adjacent unpaved or soft trails in certain areas.The Iron Horse Regional Trail has several bridges over busy thoroughfares to help improve traffic flow; two notable ones cross over Ygnacio Valley Road in Walnut Creek and Treat Boulevard in Contra Costa Centre. Additional bridges are in the planning process. Despite initial skepticism, and even opposition, the trail is now a major transportation and recreation corridor. One million trips are made each year on the path.

San Ramon Valley High School is a four-year public high school located in the East Bay neighborhood of Danville, California, United States. It is a part of the San Ramon Valley Unified School District. It is a National Blue Ribbon school from the Blue Ribbon Schools Program as well as a California Distinguished School. Its rival is Monte Vista High School.

The Danville Southern Pacific Train Depot in Danville, California is located at 205 Railroad Ave. and W Prospect Ave. It was built in 1891 on land donated by John Hartz which was erected when the Martinez line was extended south to San Ramon. The first train came on June 7, 1891. Passenger service ended in 1934. The Southern Pacific Railroad trains continued to pass through town with freight until 1978 when the line was abandoned. The building was sold in 1951 for the Danville Supply and Feed store. In June 1996, it was purchased and moved 100 yards. It was a passenger and freight station built to the design titled "Combination Station No. 22" out of standard designs of the Southern Pacific. In 2018 it houses the Museum of the San Ramon Valley. It lies along the Iron Horse Regional Trail, a rail trail formed from the converted Southern Pacific right of way.

The Town of Danville is located in the San Ramon Valley in Contra Costa County, California. It is one of the incorporated municipalities in California that use "town" in their names instead of "city". The population was 43,582 at the 2020 census. Since 2018, for five years in a row, Danville was named "the safest town in California".The Iron Horse Regional Trail runs through Danville. It was first a railroad that has been converted to an 80-foot (24 m) wide corridor of bike and hike trails as well as controlled intersections. Extending from Livermore to Concord, the trail passes through Danville.Danville is also home to the Eugene O'Neill National Historic Site, Village Theatre and Art Gallery, and the Museum of the San Ramon Valley.

Kaiser Creek is an approximately 3 mile (4.8 km) long perennial creek in western Contra Costa and Alameda County, California, in the San Francisco Bay Area. It is a tributary of the Upper San Leandro Reservoir, part of the larger San Leandro Creek system.

The San Antonio Formation is a middle to late Pleistocene (Irvingtonian in the NALMA classification) geologic formation in California. It preserves fossils.