I posted this on another site, thought I’d try here too: Does anyone know the name of the pass/location where the Colorado & Southern-BN-BNSF enters Colorado from Northeast New Mexico? I’ve found virtually no information on it. I know it’s not that far from Raton Pass....how were the C&S grades? Are there any places I can find photos of the area, especially during the Burlington Northern era? What was the primary traffic during this era? Any books out there that covers it? Looking for any info I can get. Thanks!