Looking north along the southbound track towards the south portal of Caltrain tunnel #2 in the distance, from beneath the Cesar Chavez Street offramp from Interstate 280.

Shot with the Nikon D70s and the 18-70mm f/3.5-4.5 zoom at 18mm, ISO 400, f/8, shutter 1/640 sec. Straightening, cropping, exposure, contrast, saturation, levels, and highlights adjustments in Aperture.