Amtrak\'s Southwest Chief, the eastbound No. 4, rounds the curve at WSS Chapelle, the west end of the Chapelle, N.M., siding, in July 2015. These semaphores are between Lamy, N.M., and Las Vegas, N.M., but immediately north of the S-Curves and closer to Las Vegas. The exit off I-25 is Bernal. Proceed east & follow a county road which will take you directly to the west semaphores.The east semaphores are also easily accessible.