Trackwork on a minor spur switch near CP Hendy, Sunnyvale, California. Mainline switches are amazingly complicated for something that is so mechanically simple in principle. Darwin at work.

Shot with the Nikon D70s and the 18-70mm f/3.5-4.5 zoom at 70mm, ISO 400, f/7.1, shutter 1/320 sec. Exposure, saturation, shadows, and levels adjustments in Aperture.