The Feather River Route is divided into the following subdivisions:
Shafter subdivision from [Elko and] Wells to Smelter
The paired track ends at the crossovers at Alazon (MP 713.6), where the speed limit is 79-70. The ex-WP line turns southeast, passing underneath the I-80 bridges, on a long curving, climbing, ramp past the 6,146 ft. siding at Wells (MP 717.1), where the speed limit is 65-55, to MP 718.4, where the speed limit is 70-60), skirting the west side of the town, and turns south, with the East Humboldt Range to the west, finally separating from the ex-SP line that has edged away to the east. The ex-WP line, with speed limit now 79-70, passes Boaz, the grade crossing with US 93, and the 6,010 ft. siding at Ruby (MP 727.4-728.7), turns south-southeast, with mountains on the horizon in every direction past a detector at MP 733.0 and Tobar (MP 733.5), and southeast, with the whole Independence Valley in view, at the 6,224 ft. siding at Ventosa (MP 737.7-738.9), on the straight track past the 6,102 ft. siding at Spruce (MP 746.8-747.9), where there is still a wye track once used for turning helpers, to Rockland, where it turns south-southeast and then curvily southeast, starting the climb to the summit of the Pequop Mountains, with speed limit 55-60, then south past Hogan, turning east through 5,675.9 ft. Tunnel 43 (Old Flowery Lake Tunnel, MP 753.7), easternmost tunnel on the old WP, with a 5,907 ft. elevation summit just inside the west portal, and then north-northeast, on a 1% downgrade to the floor of the Steptoe Valley, past the 6,020 ft. siding at Sage (MP 757.0-758.3) and Luke, where the speed limit returns to 79-70, and then northeast on a 12-mile straight past the 6,002 ft. siding at Shafter (MP 765.8-767.1), where the Nevada Northern trails in from the south (and once crossed on the flat to continue north to the former SP line).
The line continues northeast, climbing at 1%, past a detector at MP 769.4 and the 5,994 ft. siding at Silver Zone (MP 771.8-773.1), top of the eponymous pass, where there is another wye once used by helpers and the speed limit drops to 70-60, and turns east, under the I-80 bridges and then north-northeast to Arnold's Loop (MP 779.0), where the speed limit drops to 30-25, turning clockwise around Arnold’s Loop (actually, a horseshoe curve) until it is heading south-southwest, and then turns southwest through the 5,976 ft. siding at Clifside (MP 780.3-781.6), then east on a 150-degree curve, under I-80 again, past Proctor and south-southeast, with speed limit now 70-60, past the 5,994 ft. siding at Pilot (MP 788.4-789.6), with 10,900 ft. Pilot Peak to the east, east past Dyke (MP 795.7), where the speed limit drops to 50-45 for the descent into the Utah salt flats, turning south, south-southwest, south through the 5,979 ft. siding at Ola (MP 798.0-799.3), where the speed limit drops to 40-35, sharply east and then north-northeast, on a very tight curve, past a detector at MP 802.6, where the speed limit rises to 70-60, and then due east into Utah.
The desert floor is reached approaching the 10,410 ft. siding at Wendover (MP 806.0-808.1), where the speed limit rises to 79-70 again and a line from Gold Hill once trailed in from the south. East of Wendover, the line heads due east on a 43-mile straight with I-80 alongside to the north, across part of the historical Great Salt Lake, known as Lake Bonneville, passing a spur at Blair (MP 808.7), Silsbee, the 6,114 ft. siding at Salduro (MP 814.8-816.0), a detector at MP 816.3, the 6,239 ft. siding at Arinosa (MP 824.5-825.8), a detector at MP 829.8, the 6,251 ft. siding at Barro (MP 834.3-835.5), running along the southern edge of the Newfoundland Evaporation Basin (used when the Great Salt Lake overflowed its boundaries in the early 1980s), and passing the 5,965 ft. siding at Knolls (MP 844.5-845.8), where the straight ends as the line edges east-southeast, the 6,002 ft. siding at Clive (MP 853.6-864.9), and Enviro (MP 855.0) before turning northeast past a detector at MP 880.4, where the speed limit is 65-60 and Aragonite (MP 861.5), where the speed limit is 70-60.
The line then curves east and north-northeast again, past the 5,959 ft. siding at Low (MP 865.5-866.8), where the speed limit is 55-50, northeast and north-northeast again to Marblehead (MP 870.8), where the speed limit is 60-55, a spur continues straight ahead to the Marblehead Plant, and the main line turns south and then southeast to the 8,000 ft. siding at Delle (MP 877.8-879.4), where a line goes off northeast to Rowley, the speed limit rises to 79-70 again, and the line turns south-southeast. There is an 8,028 ft. siding at Timpie (MP 885.3-887.0), Ellerbeck (MP 892.9), where a line from Flux and Dolomite trails in from the southwest, a spur at Solar (MP 893.4), a detector at MP 893.7, and the 6,135 ft. siding at Burmester (MP 896.5-897.8), from whose west end a line heads southeast to Warner on the Salt Lake Route.
The line turns east-northeast along the southern shore of the Great Salt Lake, past Spray, the line from Los Angeles comes alongside from the south, the ex-WP line passes Lago, and the lines come together at the crossovers at Smelter (MP 911.4/766.4), after which both lines proceed together, now operated as double track, into Salt Lake City.