Denver, Rio Grande and Western Royal Gorge. The Royal Gorge was originally a St. Louis to Oakland train that operated Mo Pac to Colorado Springs, DRG&W Colorado Springs to Salt Lake City, WP Salt Lake City-Oakland. In the 1950s and early 60s, it was a DRG&W Denver - Colorado Springs-Salt Lake City Train via the Royal Gorge Route which was as beautiful as the California Zephyr route via the Moffat Tunnel. Unfortunately I didn't get to ride this train before it was discontinued and now it would be impossible because the route through the Royal Gorge has been truncated. If I remember correctly, DRG&W ran a Dome car almost to the end. D&RGW bought some of the excess Chessie cars bulit by C&O for their illfated Chessie train between Washington, DC and Cincinnati. The Domes were perfect for the Rocky Mountains. Some of these cars survived into Amtrak.