The East Bay
Alameda and Contra Costa Counties

The East Bay extends from the Carquinez Strait in the north to Fremont and Milpitas in the south, and from San Francisco Bay in the west to the Sacramento Delta in the east.
Terrain: The hills of the East Bay are generally not as high as those along the coast, though Mt. Diablo, with an elevation of 3,849 feet, dominates the landscape and can be seen from nearly everywhere in the Bay Area.
Climate: Though somewhat sheltered from coastal fog and ocean winds, the East Bay is usually the hottest and driest of all the regions in the Bay Area.
The Berkeley Hills, above the city of Berkeley, are higher and steeper than those of the surrounding area, and are filled with densely wooded redwood forests which are nurtured by cool breezes and moisture-laden fogs typically coming in from the west. They offer a wide variety of off-road cycling by virtue of four outstanding Regional Parks.
The Livermore Valley, in the south, is home to some of the finest vineyards in northern California, and has the added distinction of being the location of the unique power generating windmill farms in the windy Altamont Pass. Cycling through this area is certainly one of the most unusual and eerie experiences imaginable, especially when the wind is blowing and the blades are turning. It is also dramatically represented by old and new the historic Mission San José in Fremont and the ultra modern Lawrence Livermore National Laboratory in Livermore. Nearby, rural country roads are surprisingly easy to find.

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