Here is the BN Front Range Sub in 1988. Also known as the 11th Sub (formerly of the BN Denver Division?) this later became a part of the 1998 BNSF Colorado Davison. This BN track chart shows the Front Range Sub from Denver to Cheyenne to Wendover. At Wendover this sub meets the Casper Sub. Half of the Casper Sub (Wendover to Casper) is included with this chart.
This is a scan of an original Burlington Northern Front Range Sub track chart. 73 pages. Corrected to 12/31/1988.