Robert Sibley Volcanic Regional Preserve

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.

Round Top is an extinct volcano in the Berkeley Hills, just east of Oakland, California. The peak lies entirely within the bounds of Contra Costa County. In 1936, the area surrounding the peak was established as Round Top Regional Park, one of the first three parks of the East Bay Regional Parks District. The park was renamed Sibley Volcanic Regional Preserve for the second president of the park district (1948 to 1958), Robert Sibley, shortly after his death in 1958. The eruptions that lead to Round Top started 10.2 Million years ago and ended more than a million years later. Two main vents of the old volcano are known, one is now under the Lawrence Berkeley National Laboratory, the other is Round Top. The Round Top vent has, over the years, fallen sideways.

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.

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.

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 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).

KPFA (94.1 FM) is an American listener-funded talk radio and music radio station located in Berkeley, California, broadcasting to the San Francisco Bay Area. KPFA airs public news, public affairs, talk, and music programming. The station signed on the air April 15, 1949, as the first Pacifica Radio station and remains the flagship station of the Pacifica Radio Network. The station's studios are located in Downtown Berkeley, and the transmitter site is located in the Berkeley Hills.

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).

Claremont Tunnel, also known as the Claremont Water Tunnel is a utility tunnel in Alameda County, in the U.S. state of California near the historic Claremont Hotel. The tunnel crosses the Hayward Fault and carries water for 800,000 EBMUD customers.

Claremont Canyon Regional Preserve is a small regional park mainly located in the city of Oakland, California, and administered by the East Bay Regional Park District. The park is named for the canyon in which it is situated, Claremont Canyon, out of which Claremont Creek flows on its way to its confluence with Temescal Creek. Originally, the canyon was named Harwood's Canyon, and then later as Telegraph Canyon. The name was changed to Claremont by a developer of the nearby Claremont district.

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

Lake Temescal is a small reservoir in the Oakland hills, in northeastern Oakland, California. It is the centerpiece of Temescal Regional Recreation Area, also known as Temescal Regional Park (and originally, Lake Temescal Regional Park). It is a part of the East Bay Regional Park District.