Signal guarding industrial spur off the mainline in Santa Clara, California, juxtaposed with an entirely different kind of signaling device.

Shot with the Nikon D70s and the 18-70mm f/3.5-4.5 zoom at 50mm, ISO 400, f/10, shutter 1/640 sec. Exposure, contrast, saturation, levels, and highlights adjustments in Aperture.