In the foreground, grassland with green coast live oaks (Quercus agrifolia var. agrifolia) and pinkish-gray valley oaks (Q. lobata), turning color for fall. Behind, oak woodland: mostly coast live oaks. Are the reddish places, black oaks (Q. Kelloggii)? Power lines cross Rattlesnake Rock on the right, heading for SLAC behind us. A cloudy day, threatening rain.