Weird seismic cable bracing and other metalwork on the underside of US Highway 101, as seen from the tracks, South San Francisco, California.

Shot with the Nikon D70s and the 18-70mm f/3.5-4.5 zoom at 18mm, ISO 400, f/8, shutter 1/160 sec. Exposure, contrast, saturation, and highlights adjustments in Aperture.