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Pleasanton Ridge Regional Park is a park in the
East Bay Regional Park District The East Bay Regional Park District (EBRPD) is a Special-purpose district, special district operating in Alameda County, California, Alameda County and Contra Costa County, California, within the East Bay (California), East Bay area of the San Fra ...
overlooking
Pleasanton, California Pleasanton is a city in Alameda County, California, United States. Located in the Amador Valley, it is an upscale suburb in the East Bay region of the San Francisco Bay Area. The population was 79,871 at the 2020 United States census, 2020 cens ...
and the Livermore Valley to the east.


History

Pleasanton Ridge Regional Park, located west of the I-680 freeway and the City of
Pleasanton, California Pleasanton is a city in Alameda County, California, United States. Located in the Amador Valley, it is an upscale suburb in the East Bay region of the San Francisco Bay Area. The population was 79,871 at the 2020 United States census, 2020 cens ...
, became a reality in 1988, when the East Bay Regional Park District bought to start what would become its second-largest park. In 1980, a real estate developer had proposed building a golf course and a number of new homes atop Pleasanton Ridge. A large number of area residents opposed the proposal and defeated it in a referendum in 1983.Cuff, Denis. "Park with a view: Pleasanton Ridge expands fast." ''East Bay Times''. September 6, 2013. Updated July 20, 2016.
Accessed August 17, 2017.
In 2012, the park district announced it had purchased from Robertson Ranch, east of Palomares Road, which it would add to Pleasanton Ridge Regional Park. The tract included the landmark Sunol Peak (elevation . The price was reported as $6.2 million. The report stated that prior to the purchase, the regional park contained of land. Austin, Michael. "Another Major Land Purchase on the Pleasanton Ridge by East Bay Regional Parks District." ''Pleasanton Patch''. August 18, 2012.
Accessed August 17, 2017.


Tyler Ranch acquisition

The Tyler Ranch extends for about along Sunol Ridge. The north end of the ranch abutted the existing Pleasanton Ridge park at the end of Kilkare Road. It also has good access from Foothill Road. The acquisition was supported by the Priem Family Foundation, which is dedicated to preserving open space in the greater Bay Area.Mackay, Ned. "Tyler Ranch to join district." ''East Bay Times''. October 5, 2007. Updated August 15, 2016
Accessed August 16, 2017.
The park was scheduled to grow by almost (''sic'') with the acquisition of the Tyler Ranch. EBRPD claimed that the Tyler Ranch acquisition marked the occasion when the district acquired 100,000 acres since it was formed in 1934.Baciagalupi, Bob. "The 100,000th Acre for East Bay Parks." ''Bay Nature''. January 12, 2010.
Accessed August 16, 2017
The Tyler Ranch Staging Area, located on the holdings of Tyler Ranch and Robertson Ranch, opened in December 2023 and offers additional walking, horseback riding, and cycling spaces on over 18 miles of trails across 2,800 acres.


Trails

Pleasanton Ridge Regional Park contains over of trails, most of which are dirt roads, except for the Woodland Trail, the Bay Leaf Trail, and a few sections of the North Ridge and Ridgeline trails. Park elevations range from at the main entrance to over at the highest point.
Accessed September 11, 2017.
Adjacent to the park is the Augustin Bernal Park. The 237-acre park was donated to the city of Pleasanton by Walter S. Johnson in 1971.


Geology and geography

Pleasanton Ridge is the southeastern component of the East Bay Hills, which refers geologically to all of the ranges east of the Bay from the Hayward Fault in the west to the
Calaveras Fault The Calaveras Fault is a major branch of the San Andreas Fault System that is located in northern California in the San Francisco Bay Area. Activity on the different segments of the fault includes moderate and large earthquakes as well as aseis ...
in the east. The
United States Geological Survey The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on Mar ...
(USGS) Geographic Names Information System, however, includes Pleasanton Ridge as part of the
Diablo Range The Diablo Range is a mountain range in the California Coast Ranges subdivision of the Pacific Coast Ranges in northern California, United States. It stretches from the eastern San Francisco Bay Area at its northern end to the Salinas Valley a ...
in its list of GPS coordinates for the latter.


Notes


References


External links


East Bay Regional Parks: official Pleasanton Ridge Regional Park website
{{Pleasanton, California East Bay Regional Park District Parks in Alameda County, California Geography of Pleasanton, California Amador Valley