Daylight comes to the three oaks: a bare Blue Oak (Quercus douglasii) with a dark-green Coast Live Oak (Q. agrifolia var. agrifolia) ito its right; down the hill, a Leather Oak (Q. durata durata). Serpentine rocks thrust from serpentine soil, welcoming the sun. More fertile soil has washed into the hollow in the foreground. San Francisco Bay is in full sunlight. From Road F, 7:33 am.