A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.
|Roberts Regional Recreation Area|
|Nearest city||Oakland, California|
|Area||82 acres (0.33 km2)|
|Operated by||East Bay Regional Park District|
Roberts Regional Recreation Area (RRRA) is an area adjacent to Redwood Regional Park located in Alameda County next to Oakland, CA and is part of the East Bay Regional Parks (EBRPD). It is across Skyline Drive from the City of Oakland's Joaquin Miller Park. Kaiser Aluminum and Chemical Corp. adopted Roberts Park in 1979, under the newly-developed Adopt-a-Park program, which promised continued funding. This was the first park in EBRPD to be so adopted.
Redwood Regional Park is a part of the East Bay Regional Parks District (EBRPD) in the San Francisco Bay Area. It is located in the hills east of Oakland. The park contains the largest remaining natural stand of coast redwood found in the East Bay. The park is part of a historical belt of coast redwood extending south to Leona Canyon Regional Open Space Preserve and east to Moraga.
The East Bay Regional Park District (EBRPD) is a special district operating in Alameda County and Contra Costa County, California, within the East Bay area of the San Francisco Bay Area. It maintains and operates a system of regional parks which is the largest urban regional park district in the United States. The administrative office is located in Oakland.
Roberts Regional Recreational Area has picnic tables, playground and a seasonal pool with lifeguard.
California Historical Landmark #962, "Blossom Rock Navigation Trees," is located in the Madrone Picnic Area of the Roberts area. It describes how two of the most prominent redwood trees were used by sailors entering San Francisco Bay during the early 19th Century to avoid hitting a submerged hazard known as Blossom Rock.The rock was between Alcatraz Island, Yerba Buena Island and the Port of San Francisco.
Blossom Rock was a serious navigational hazard to sailing ships entering or leaving San Francisco Bay in the 19th Century. It was formally reported by Captain F. Beechey of the Royal Navy ship HMS Blossom in 1827.
Alcatraz Island is located in San Francisco Bay, 1.25 miles (2.01 km) offshore from San Francisco, California, United States. The small island was developed with facilities for a lighthouse, a military fortification, a military prison (1828), and a federal prison from 1934 until 1963. Beginning in November 1969, the island was occupied for more than 19 months by a group of Native Americans from San Francisco, who were part of a wave of Native activism across the nation, with public protests through the 1970s. In 1972, Alcatraz became part of a national recreation area and received designation as a National Historic Landmark in 1986.
Yerba Buena Island sits in the San Francisco Bay between San Francisco and Oakland, California. The Yerba Buena Tunnel runs through its center and connects the western and eastern spans of the San Francisco–Oakland Bay Bridge. It has had several other names over the decades: Sea Bird Island, Wood Island, and Goat Island. The island is named after the town of Yerba Buena, which was named for the plant of the same name that was abundant in the area. The plant's English and Spanish common name, Yerba buena, is an alternate form of the Spanish hierba buena, generally used to describe local species of the mint family.
The rock was first reported in 1827 by a British sea captain.It was finally rendered non-hazardous in 1870 by the Corps of Engineers, using a combination of drilling and blasting. Meanwhile, the "Navigation Trees" were cut down between 1851 and 1855, leaving ships entering and leaving the Golden Gate for nearly two more decades.
The RRRA area was covered by redwood trees that were logged between 1840 and 1860 to provide building materials needed to support the explosive population growth in San Francisco and Oakland immediately following the discovery of gold in California. Redwood trees presently in Roberts and Redwood parks are second growth.
Roberts Regional Recreational Area opened to the public in 1952. It was named for Thomas J. "Tommy" Roberts, then secretary to the East Bay Regional Park District board of directors for 24 years. He continued to serve on the board until his death in 1958, at age 95.
The RRRA opens at 8:00 AM, year round. Closing time varies from 5:00 PM to 8:00 PM, depending on the month. The park may close earlier than the posted time if the weather turns bad or if there are judged to be too few visitors. Parking fees are $5.00 per vehicle, $4.00 per trailer, and $25.00 per bus.
Dogs on the inside of RRRA must be leashed. There is no charge for guide/service dogs. Owners are charged $2.00 for all other dogs.
There are eight reservable picnic locations in the main part of the park (capacities are shown in parentheses:
Two additional sites in the Redwood Bowl area are suitable for larger groups: Redwood Bowl (50) Anna Costa (50).
All picnic sites have serving tables, individual picnic tables, cooking areas, barbecue pits and drinking fountains. Reservations can be made by calling 1-888-EBPARKS or 1-888-327-2757, press option 2. Reservations are not necessary for family picnicking when there are fewer than 25 people in the group.
The RRRA swimming area features a heated pool, 25 yards (23 m) long and 3 feet (0.91 m) to 8.5 feet (2.6 m) deep, but with no diving board. Besides the pool, the swim complex has a wheelchair accessible bathhouse, vending machines and lawn area. There is also an accessible lift into the pool. The swimming area is normally open from mid-April until the end of September. Special times are reserved when only disabled visitors are allowed to use the pool.
Point Pinole Regional Shoreline is a regional park on the shores of the San Pablo Bay, California, in the United States. It is approximately 2,315 acres (9.37 km2) in area, and is operated by the East Bay Regional Park District. It includes the Dotson Family Marsh and the Point Pinole Lagoon and hosts the North Richmond Shoreline Festival.
Big Basin Redwoods State Park is a state park in the U.S. state of California, located in Santa Cruz County, about 36 km (22 mi) northwest of Santa Cruz. The park contains almost all of the Waddell Creek watershed, which was formed by the seismic uplift of its rim, and the erosion of its center by the many streams in its bowl-shaped depression.
Henry Cowell Redwoods State Park is a state park of California, USA, preserving mainly forest and riparian areas in the watershed of the San Lorenzo River, including a grove of old-growth coast redwood. It is located in Santa Cruz County, primarily in the area between the cities of Santa Cruz and Scotts Valley, near the community of Felton and the University of California at Santa Cruz. The park includes a non-contiguous extension in the Fall Creek area north of Felton. The 4,623-acre (1,871 ha) park was established in 1954.
Coyote Hills Regional Park is a regional park encompassing nearly 978 acres of land and administered by the East Bay Regional Park District. The park, which was dedicated to public use in 1967, is located in Fremont, California, on the southeast shore of the San Francisco Bay. The Coyote Hills themselves are a small range of hills at the edge of the bay; though not reaching any great height, they afford tremendous views of the bay, three of the trans-bay bridges, the cities of San Francisco and Oakland, the Peninsula Range of the Santa Cruz Mountains and Mount Tamalpais. In addition to the hills themselves, the park encloses a substantial area of wetlands.
Montclair 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.
Temescal Regional Recreation Area (TRRA), formerly Lake Temescal Regional Park, is a regional park in the Berkeley Hills, in northeastern Oakland, California. The TRRA encompasses 48 acres (19 ha), abutting SR 24, SR13, and the interchange connecting the two highways, southwest of the Caldecott Tunnel.The park is part of the East Bay Regional Park District (EBRPD).
Kennedy Grove Regional Recreation Area,(KGRRA), also known simply as Kennedy Grove, is located in West Contra Costa County, California at the base of San Pablo Dam. The nearest city is El Sobrante, California. Created in 1967, it contains a three-mile hiking trail with an elevation of 760 feet (230 m). The Grove features many large eucalyptus trees, picnic areas, volleyball nets, playgrounds, and horseshoe pits. Bird watching is popular here because hawks are almost always spotted. Some hikers have reported seeing golden and bald eagles around the reservoir. There is no camping allowed. Parking is $5 with an extra $2 fee for a dog. Dogs have to be on the leash around the lawn but they are allowed off the leash in remote parts of the park. The park is open from 8 a.m. to dusk.
Point Isabel Regional Shoreline in Richmond, California, is operated by East Bay Regional Park District, and is a multi-use park for joggers, windsurfers, kayakers, photographers, picnickers, and people walking dogs. It has access for pedestrians and via public transit, private vehicles, and bikes. It also features a concession offering food for people and grooming for pets. A longtime community organization and nonprofit, Point Isabel Dog Owners and Friends (PIDO), is active in the maintenance and improvement of the park.
The Purisima Creek Redwoods Open Space Preserve is located on the western slopes of historic Kings Mountain in Woodside, California. This 4,471-acre (1,809 ha) preserve was established with a $2 million gift from the Save the Redwoods League.
Middle Harbor Shoreline Park (MHSP) is located on San Francisco Bay and the Port of Oakland entrance channel, west of downtown Oakland, California. It is owned and operated by the Port of Oakland. The park entrance is at the intersection of 7th and Middle Harbor Streets. It is open seven days a week from 8 a.m. to dusk.
Huckleberry Botanic Regional Preserve is a 241 acres (0.98 km2) regional park and nature reserve in the Berkeley Hills, in the eastern East Bay 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 which grows abundantly within its habitat.
Radke Martinez Regional Shoreline (RMRS) is a regional park on the shoreline of Carquinez Strait in Martinez, located in northern Contra Costa County, California. Formerly known as the Martinez Regional Shoreline, it was renamed on December 6, 2016, in honor of the late Ted Radke and his late wife Kathy Radke.
Robert Sibley Volcanic Regional Preserve is located in the Berkeley 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 partly in Alameda County and partly in Contra Costa County, east of Oakland. It can be entered from Oakland on Skyline Boulevard, or from Contra Costa County on Old Tunnel Road.
Crown Memorial State Beach is a state park in the city of Alameda, CA on the shores of San Francisco Bay. It is operated by East Bay Regional Parks District (EBRPD), under a cooperative agreement with the State of California and the City of Alameda.
Oyster Bay Regional Shoreline is a park in San Leandro, California, part of the East Bay Regional Park District (EBRPD). It is located along the eastern shore of San Francisco Bay directly to the south of Oakland International Airport. The property was originally used as a landfill for 37 years, until it was filled to capacity in 1977, when it was capped with a clay cover. EBRPD bought the property in 1980, intending to use it as a park.
Five Canyons Open Space (FCOS) is located in Castro Valley, in Alameda County, California. Five Canyons is a multi-agency collaboration between East Bay Regional Parks District (EBRPD), Alameda County Public Works, Hayward Area Recreation and Parks District (HARD), and several homeowners associations. EBRPD is the lead agency for this open space. FCOS opened in 1998, consists of 300 acres (1.2 km2) and 5 miles (8.0 km) of trails and has almost no amenities. The main visitors are hikers, bicyclists, equestrians and dog walkers. Restrooms and drinking water are available at HARD's nearby Five Canyons Park.