Beautiful view across Crystal Springs Reservoir! Those Bay Area fogfalls over coastal ridges never get old — as long as you're watching from afar and not chilled to the bone inside.
No worries — not always clear which of our 3 main photo threads is the best fit for a given post. And no one cares much anyway. This thread's used more for unusual stuff seen on rides, as the title implies. But most places don't have frequent fogfalls, and you ride there, so might as well post them here.
However, if that's not unusual enough: The miles-long chain of narrow straight-line valleys flooded by the reservoir is the surface trace of the San Andreas Fault. So you're biking on the North American plate and looking across to the Pacific plate as it scrapes by on its way to the Aleutian trench.