Garden Siding looking north from the south end. Signal post with dual heads, GNS 3 and GNS 3R which is a repeater signal aimed up the hill for loaded trains running down grade. The small units each side of the mainline is a Cold Wheel Detector. As the trains are running down a 5 km long 1.5 percent grade the trains are under dynamic and train brake control to maintain the train speed below the limit. GeoData.