Hi, have an upcoming trip from Denver to Salt Lake City on CZ. I am wondering if i have E-ticket ready, do I still have to go through union station building to get to the platform? I am coming from the west, just want to see if there are other entrances that can take me directly to the CZ platform. I know Amtrak recently moved back to the restored station, but couldn't find a detailed station map online. thank you for your assistance.