We had three days of incredible fog. It was so dense that I drove about 25 mph across the bridge. I could only see about 10 feet in front of the car and the yellow street light distance markers. Yet people were zooming past, driving using some vision in their head of what was in front of them. That night even though there was dense fog, I decided to take the mountain road. It is longer and winds steeply around the rim of the bay but it avoids the one lane tunnel which has a ten minute traffic light. It didn't occur to me that the fog would lay so heavily against the side of the hills. I wound around following the reflectors in the road and finally found the crest of the hill. Once over the crest the fog thinned. As my headlights began to point down the hill there was a bobcat by a rocky wall. Her eyes opal in my headlights, holding a rodent in her mouth.