Round Top

Huckleberry Botanic Regional Preserve is a 241 acres (0.98 km2) regional park and nature reserve in the Oakland Hills, in the eastern East Bay (San Francisco Bay Area) region of the San Francisco Bay Area of California. It is within Alameda and Contra Costa Counties. It is a park within the East Bay Regional Parks District system. The Preserve is named after the California Huckleberry (Vaccinium ovatum) which grows abundantly within its habitat.

Robert Sibley Volcanic Regional Preserve is located in the Oakland Hills of the East Bay region of the San Francisco Bay Area, California. The park is part of the East Bay Regional Parks District (EBRPD), covers 928 acres (3.76 km2), and lies east of Oakland, partly in Alameda County and partly in Contra Costa County. It can be entered from Oakland via Skyline Boulevard, or from Contra Costa County via Old Tunnel Road.

Oakland Hills is an informal term used to indicate the city neighborhoods lying within the eastern portion of Oakland, California. The northernmost neighborhoods were devastated by the Oakland firestorm of 1991.

The Caldecott Tunnel fire killed seven people in the third (then-northernmost) bore of the Caldecott Tunnel, on State Route 24 between Oakland and Orinda in the U.S. state of California, just after midnight on 7 April 1982. It is one of the few major tunnel fires involving a cargo normally considered to be highly flammable, namely gasoline. At the time of the fire, the Caldecott tunnel complex consisted of three bores side-by-side, each 0.7 mi long (1.1 km). The then-northernmost bore, where the fire occurred, is dedicated to westbound traffic, traveling from Orinda to Oakland. It has a slope of approximately 4.7%, going downhill from the entry portal to the exit portal.

On October 31, 2019, a mass shooting occurred in Orinda, California, during a house party that left five people dead and four others injured.

Montclair (also known as the Montclair District or Montclair Village) is a neighborhood in Oakland, California, United States. Montclair is located along the western slope of the Oakland Hills from a valley formed by the Hayward Fault to the upper ridge of the hills. Although there is no formal definition of the neighborhood, the general boundaries are Highway 24 to the north, Joaquin Miller Road to the south, the city of Piedmont to the west and the Contra Costa County border to the east. The center of the neighborhood is a compact shopping district known as Montclair Village which is located next to Highway 13 in the bottom of the valley. It lies at an elevation of 640 feet (195 m).

The Caldecott Tunnel is an east–west highway tunnel through the Berkeley Hills between Oakland and Orinda, California. Its four bores carry California State Route 24. Named after Thomas E. Caldecott, former mayor of Berkeley, it opened in 1937 as a two-bore tunnel. The third bore opened in 1964 and the fourth bore in 2013. Currently, the two oldest bores carry eastbound traffic and the two newest bores carry westbound traffic.

Piedmont Pines is an affluent residential neighborhood in the hills of Oakland, California. It is generally bounded by Highway 13 (the Warren Freeway) to the west, Shepherd Canyon Rd. to the north, Skyline Blvd. to the east, and Joaquin Miller Park to the south. Two Oakland public schools are included in the area, Montera Middle School and Joaquin Miller Elementary School. There is no business section in Piedmont Pines. Although listed as a distinct district, realtors-architects, city government, and many Piedmont Pines residents have long considered the neighborhood as part of the larger Montclair district. Piedmont Pines is relatively remote from the city center and generally less known than Montclair; many Oaklanders do not seem to know of Piedmont Pines and consider this area to be part of the Montclair district, given that architecturally, geographically, demographically, and economically, the two affluent areas are virtually indistinguishable. The neighborhood's real estate includes a 1957 mid-century modern mansion by Oakland-born architect Roger Lee and an Arts and Crafts house rented by Grateful Dead sound engineer Owsley Stanley.

The Maynard Buehler House in Orinda, California is a 4,000 square feet (370 square meters) Usonian home designed by Frank Lloyd Wright in 1948 for Katherine Z. "Katie" and Maynard P. Buehler. Since 2016 the house has been used as a venue for weddings, after being featured in Vogue magazine.

Glorietta is a former unincorporated community, now annexed to Orinda in Contra Costa County, California. It lies at an elevation of 597 feet (182 m).

Orinda station is a Bay Area Rapid Transit station in Orinda, California. The station has an island platform in the center median of State Route 24. Service at the station began on May 21, 1973, following the completion of the Berkeley Hills Tunnel, which connects it to Rockridge station. An abstract mural by Win Ng, partially covered by advertisements, is located in the fare lobby.In 2008, BART added solar panels over parking areas at Orinda station, as well as the Richmond and Hayward maintenance yards. The $3.8 million project was expected to provide all station electrical needs during daylight hours.The elevator to the platform is outside of the paid area. BART plans to add a dedicated faregate for the elevator in 2022.

The Oakland firestorm of 1991 was a large suburban wildland–urban interface conflagration that occurred on the hillsides of northern Oakland, California, and southeastern Berkeley over the weekend of October 19–20, 1991, before being brought under full control on October 23. The official name of this incident by Cal Fire is the Tunnel Fire. However, it is also commonly referred to as the Oakland Hills firestorm or the East Bay Hills fire. The fire ultimately killed 25 people and injured 150 others. The 1,520 acres (620 ha) destroyed included 2,843 single-family dwellings and 437 apartment and condominium units. The economic loss from the fire was estimated at $1.5 billion ($2.59 billion in 2021 dollars).