From East Trinidad (MP 213.9), where a shortcut swings away northwest to bridge over the former Santa Fe passenger line to West Trinidad, the single track, CTC, line, with speed limit 35 mph, makes a turn south-southwest and then southwest again, and a clockwise horseshoe back to the northeast, and passes a junction with the former Santa Fe Raton sub., on a spur at MP 208.6, the 7,500 ft. siding (once a yard) at Trinidad (MP 208.3), a turn to the north, a flat crossing with northwest quadrant connector with the former Santa Fe Raton sub. at ATSF-BN Crossing, a detector at MP 208.0, West Trinidad (MP 208.0), where the shortcut connector from East Trinidad trails in on the east side, a turn very curvily north-northwest, Thor, Suffield, Forbes Junction, where erstwhile mining spurs once crossed and headed away southwest, a detector at MP 201.3, a turn west, north-northwest, where an erstwhile mining spur to the Ludlow Mine once headed southwest, and north-northeast, where erstwhile mining spurs once headed west, crossed and headed west, sand headed west.
There is a 7,735 ft. siding at Ludlow (MP 196.1), where the line turns north, the speed limit has risen to 45 mph and Track Warrant Control, Automatic Block Signals, has replaced the CTC, a turn curvily north-northwest, a detector at MP 195.3, a detector at MP 191.0, additional track at Homer Lead (MP 191.0), Acme, where an erstwhile mining spur once headed west-southwest, the 8,078 ft. siding at Lynn (MP 189.7), Higgins, where an erstwhile mining spur once headed west-southwest, Rugby Junction, where erstwhile mining spurs once headed west and northwest, and the line turns north, a turn northeast, a detector at MP 184.7, where the speed limit has risen to 49 mph, a turn northwest, a turn north, Monson, where an erstwhile Rio Grande line once came alongside from the southwest, a detector at MP 180.9, the 7,851 ft. siding at Mayne (MP 180.1), where that erstwhile Rio Grande line once crossed and headed northeast.
The line turns curvily north-northwest, past a former crossing with another erstwhile Rio Grande line, Round Oak, where an erstwhile mining spur once trailed in from the southwest, a detector at MP 175.4, Winchell, where the line turns west, a turn north-northeast, where another erstwhile mining spur once trailed in from the southwest, a turn west and then north, additional track at DRGW Lead (MP 171.7), where the line turns northeast, and the 6,100 ft. siding and junction with the UP (former Rio Grande) Walsenburg sub., coming from La Veta Pass to the southwest, operated jointly with the BNSF north of here as Two Main Tracks, TWC (the BNSF track is Track 2), at Walsenburg (MP 171.6), where the ABS are in abeyance and the speed limit is 20 mph.
The line turns just west of due north at Walsenburg Junction, where the Rio Grande line once continued northeast, northeast at Sandy, north, northwest, north-northeast past detectors at MP 155.6, where the speed limit has risen to 40 mph, crossovers and a spur at Lascar (MP 154.7), where there was once a crossing with the erstwhile original Rio Grande right-of-way, northeast past Mustang, where there was once a connector northwest to that erstwhile r-o-w, north, northeast, east, just east of due north past crossovers and a spur at Cedarwood (MP 143.5), curvily north past Brooks, Marnel, and Sonora, and north, with the original Rio Grande r-o-w just to the west, past a detector on Track 2 at MP 129.2, Zinc Junction, where there was once an acute angled crossing with that original Rio Grande r-o-w, crossovers at Southern Junction (MP 124.8), where the speed limit has dropped to 20 mph as the former C&S line separates, on the east side, from the former Rio Grande line of the double track and heads north-northeast, additional track at South Lead (MP 124.7), a spur tailing in from the Comanche Power Plant to the east at Comanche Lead (MP 124.6), and additional track on the west side of the single track at CW Lead (MP 124.6).
The line turns east and then southeast through a clockwise horseshoe, past the junction with the Colorado & Wyoming line to the Colorado Fuel & Iron Steel Plant on the northeast side (the 'west' side of the line) at Minnequa (MP 122.6), and then through a counter-clockwise horseshoe back to the north past Salt Creek Junction (MP 121.2), where CTC starts, and additional track at North Lead (MP 121.2), a bridge over the Arkansas River, a flat crossing with the rump of the former MoPAc main line at UP Xing, and the junction with the former Santa Fe La Junta line from the east, the southbound line of the Colorado Joint Line from the north, and the line west into Pueblo at the wye at Pueblo Junction (MP 120.6/119.6).