Benicia State Recreation Area covers marsh, grassy hillsides and rocky beaches along the narrowest portion of the Carquinez Strait. Cyclists, runners, walkers, equestrians, and roller skaters...

The San Pablo Bay National Wildlife Refuge lies along the north shore of San Pablo Bay in Sonoma, Solano, and Napa Counties in northern California. The refuge includes open bay/tidal marsh,...

The Site preserves the 14 room mansion where the naturalist John Muir lived from 1890 to his death in 1914. While living in Martinez, Muir accomplished many things: he battled to prevent Yosemite...