Historic Route. The historic route for exploration of the East Bay passes northbound from Santa Clara County into Alameda County in the Bay plain, then ascends into the low hills to parallel San Francisco Bay for several miles to a campsite on San Lorenzo Creek, in Hayward today. It then continues along the foothills to enter Contra Costa County. The route continues north and east along the Carquinez Strait, Suisun Bay, and the Sacramento/San Joaquin Delta past Oakley to the vicinity of Bethany where the exploration was terminated. The explorers headed south toward Monterey, reentering Alameda County south of Clifton Court Forebay. According to Bolton, the established reference for the historic corridor, the route south crossed Patterson Pass, then ascended Crane Ridge and dropped into the Arroyo Mocho to Livermore Valley and then to San Antonio Valley and eastern Santa Clara County. This portion of the historic route is under review by a historian. Federal Components
Interpretive Sites
Recreational Trail
In the eastern part of Alameda County, the Livermore Area Recreation and Park District Regional Trail Plan shows existing or proposed trails which follow the historical route fairly closely. The regional and open space functions of this district have recently been included within EBRPD jurisdiction. The Mountain House development, which is in San Joaquin County, and a landowner have planned easements for the trail. The auto tour route described below has potential to become a marked bicycle route on the historic route. Auto Route (marked)
Auto Tour (guide book)
The auto tour would then go to downtown Oakland and the Oakland Museum and continue north on Grand Avenue to Pleasant Valley Avenue to 51st Street, north to Martin Luther King Boulevard to Colusa Avenue, then west on Fairmount Avenue in Kensington to San Pablo Avenue. For the expedition return route to Monterey, the auto route continues west on Patterson Pass Road from San Joaquin and Contra Costa counties until it ends at Greenville Road. Go south on Greenville Road, west on Tesla Road (County Road J2) two and one-half miles to Mines Road, southeast. This road follows the Arroyo Mocho into the San Antonio Valley and Santa Clara County. Agency/Organization Coordination
|