Concord, CA

united states

Concord anchors Contra Costa County about 30 miles northeast of San Francisco, connected by Highway 4 and Interstate 680. Most visitors use I-680 from either direction, while Highway 4 serves daily commuters from eastern county communities and Central Valley travelers. The city sits beneath Mount Diablo in a Mediterranean climate zone with rolling hills. The former Concord Naval Weapons Station, once the West Coast's primary ammunition depot, is being transformed into parks and housing developments.