Panoramic view of a rural area in Contra Costa County
Panoramic views of a colorful sunset in Contra Costa County
Landscape of the hills and valleys of Contra Costa county, east San Francisco bay area, California
Golden hills in Contra Costa county, mount Diablo in the background, San Francisco bay, California
San Pablo reservoir surrounded by golden hills, Contra Costa county, San Francisco bay, California
Rock formations on the hills of Costa Contra county
Rock formations on the hills of Costa Contra county
Rocky outcrops on the hills of Costa Contra county
Road crossing green hills
Panoramic view of rolling hills
Hiking trail in the hills of East San Francisco bay area
Valley in the mountains of East Bay, California
Spring landscape in East San Francisco Bay
Cloudy spring day in Las Trampas Regional Park
Valley in Briones Regional Park
Lichens growing on a rock
Smog layer in North San Francisco Bay
Aerial view of residential neighborhoods in East San Francisco Bay
Colorful trees lining up a road through Danville
View towards Richmond from Wildcat Canyon Regional Park
Morning fog covering the hills and valleys at the foothills of East San Francisco Bay
Wind turbine on a bright day
Wind turbines on top of hills
Wind turbine on top of a hill
Spherical concretion formed in a sandstone rock
Wind turbines on top of green hills
Mt. Diablo State Park Summit building
Close up of Gray Pine branches and cone
Sunset panorama of the San Francisco Bay
Mount Diablo at sunset
