Briones Regional Park, Regional park in Contra Costa County, United States.

Briones Regional Park is a 6,117-acre regional park in the Briones Hills of Contra Costa County, managed by the East Bay Regional Park District. Its highest point, Briones Peak, rises to 1,483 feet (452 m). A paved road curves through dry-grass hills bordered by trees and shrubs, and the park's western edge meets Briones Reservoir across Bear Creek Road.

The land was part of the 1842 Mexican land grant Rancho Boca de la Cañada del Pinole, given to the widow of Felipe Briones. The Briones family ran cattle there until selling the rancho in 1870. In 1909 the Peoples' Water Company, precursor to the East Bay Municipal Utility District, bought the land for watershed protection. Briones Regional Park was established in October 1967.

The park's name comes from the Briones family, who ran cattle on this land after a widow of Felipe Briones received the 1842 Rancho Boca de la Cañada del Pinole grant. Ranching never stopped: cattle, sheep and goat ranchers hold a hundred-year lease running into the 2060s, so herds still graze parts of the hills.

You can enter from several towns including Lafayette, Orinda, Pleasant Hill, and Martinez, with parking available at Springhill Elementary School and Bear Creek Road. Multiple access points give you flexibility depending on where you're coming from.

Briones Peak, at 1,483 feet, is the park's highest point; from the summit you can see Mount Diablo and the Diablo Valley to the east, the Sacramento River to the north, and the Berkeley Hills and Mount Tamalpais to the west. The peak lies within the Briones Hills of central Contra Costa County.