This mechanical device is on the extinction list, but locals want it preserved in place.
When you walk down the sidewalk to the wig-wag, remember, locomotives run about 100 tons a piece. Fortunately, the device will give you a heads up. The microcache is a magnetic micro, located a block away in Point Richmond.
There are several restaurants and hidden cafes nearby, FYI.
This is near waypoint GCA38E, also subject to extinction. If you're here on the weekend, GSMRM Model Trains may be open, through the tunnel at waypoint GCAD42.
PS: Thanks to Team Alamo for conducting the check on my coords. This cache was originally intended as a virt on 11/7/2002.