Seminole Connection (Jacksonville) to Auburndale

From the wye, with its north apex at Beaver Street (MP 642.5), in the vicinity of the former Jacksonville terminal station, where the Nahunta subdivision, Sanford subdivision, and Wildwood subdivision all meet, with the route of the former SAL once crossing the north apex on the flat, and speed limit 15 mph for passenger trains and 10 mph for freight trains on the wye, the former ACL Orlando route heads southwest, double track, CTC, with overall speed limit 79 mph for passenger trains, 70 mph for intermodal trains, and 60 mph for freights, with a local restriction of 15 mph through the wye, past a flat crossing with a Florida East Coast yard lead at MP 642.8 and one with a CSX yard lead at MP 642.9 as far as MP 643.0, 20 mph to MP 644.8 (with only 700 feet between MP 643.0 and MP 644.0), past Edgewood, and turning south, 30 mph to MP 647.1 on the west track and MP 648.2 on the east track, and 50 mph to MP 648.2 on the west track (and to MP 649.1 on single track), past St. Johns, to the end of double track at MP 648.2.

There is a bridge at McGirts Creek between MP 649.1 and MP 649.2, with passenger speed restriction 50 mph and freight speed restriction 45 mph, where the line turns south-southeast along the St, Johns River, with a speed restriction of 65 mph between MP 649.2 and MP 650.6, and then just west of due south, with a passenger speed restriction of 70 mph between MP 650.6 and MP 651.9, after which full line speeds prevail, past the 10,140 ft. east side siding (25 mph) at Yukon (MP 654.0), a spur on the east side to Jacksonville Naval Air Station, Reeds, where it turns south, a passenger speed restriction of 70 mph between MP 655.2 and MP 657.0, the north-facing spur at Orange Park (MP 656.8), where it turns curvily southwest along Doctors Inlet, with a speed restriction of 45 mph between MP 657.0 and MP 657.2, a speed restriction of 60 mph between MP 657.2 and MP 658.5, a speed restriction of 55 mph between MP 658.5 and MP 660.2 as the line turns south, Peoria, a speed restriction of 65 mph between MP 660.2 and MP 662.8, Doctors Inlet, and a speed restriction of 60 mph between MP 662.8 and MP 665.6, after which full line speeds prevail.

The line turns curvily south-southeast, bridging over an inlet and passing the 10,180 ft. east side siding (25 mph) at Solite (MP 666.9), a detector at MP 670.2, Russell, Magnolia Springs, a speed restriction of 60 mph between MP 672.1 and MP 673.0, the north-facing spur at Green Cove Springs (MP 672.5), where the 3 ft. gauge Western Railway of Florida once headed west, the dual-ended spur at Duroc (MP 673.3), Walkill, Leno, the north-facing spur on the west side at Titan (MP 680.0), the 10,182 ft. west side siding (25 mph) at West Tocoi (MP 682.2), still generally along the west side of the St. Johns River, a turn just west of due south, a detector at MP 688.6, Bostwick (MP 690.8), where a spur to the Seminole Electric Power Plant on the river heads off on the east side, a passenger speed restriction of 75 mph between MP 690.9 and MP 693.6, Teasdale, and a speed restriction of 45 mph between MP 693.6 and MP 694.1.

There is a bridge at Rice Creek between MP 694.1 and MP 694.2, with speed restriction 20 mph, as the line turns south, a passenger speed restriction of 75 mph between MP 694.2 and MP 697.5, the 9,903 ft. west side siding (25 mph) at Pecan (MP 695.1), where a spur to Georgia Pacific heads southwest, a turn south-southeast, a speed restriction of 30 mph between MP 697.5 and MP 698.8, through Palatka, a turn south, where a Georgia Southern & Florida line once trailed in from the west, a road crossing at Washington Street (MP 697.6), Palatka (MP 698.0), where a Florida Southern line once trailed in from the west and a Florida East Coast line once trailed in from the east, there is a passenger station, and an Oklawaha Valley Railroad line once headed southwest, and a road crossing at St. Johns Street (MP 698.2).

The line turns west-southwest, past a passenger speed restriction of 70 mph between MP 698.8 and MP 700.3, Lindy, a speed restriction of 60 mph between MP 700.3 and MP 700.7, a passenger speed restriction of 70 mph between MP 700.7 and MP 702.4, a speed restriction of 60 mph between MP 702.4 and MP 703.4, a turn south past a bridge over the St. Johns River at Buffalo Bluff between MP 703.4 and MP 703.6, with a speed restriction of 50 mph, after which full line speeds prevail as the line turns south-southeast, past the 10,200 ft. east side siding (25 mph) at Satsuma (MP 708.1), a passenger speed restriction of 70 mph between MP 708.7 and MP 709.0, Sisco, a detector at MP 711.9, Pomona Park, a passenger speed restriction of 70 mph between MP 713.9 and MP 714.2, Lake Como, the 10,200 ft. west side siding (25 mph) at Huntington (MP 716.7), Crescent City, a passenger speed restriction of 70 mph between MP 720.5 and MP 722.2, Denver, a speed restriction of 60 mph between MP 722.2 and MP 723.0, Hammond, the 10,183 ft. east side siding (25 mph) at Seville (MP 726.6), and Bakersburg.

There is a speed restriction of 65 mph between MP 731.6 and MP 732.2, through Pierson, a passenger speed restriction of 75 mph between MP 733.4 and MP 733.8, a detector at MP 734.1, a turn southeast, Eldridge, the 10,088 ft. east side siding (25 mph) at Barberville (MP 737.9), a passenger speed restriction of 75 mph between MP 741.4 and MP 742.0 as the line turns south, DeLeon Springs, a lake on the west side of the line, Glenwood, Highland Park, end of the lake, a turn just east of due south, the 10,207 ft. west side siding (25 mph) at DeLand (MP 750.0), where a narrow-gauge line from Deland Landing once trailed in on the west side, there is a passenger station, and a line from Stetson trails in on the east side, Beresford, with a small lake alongside to the west, a speed restriction of 50 mph between MP 751.1 and MP 751.5, Fatio, where the line turns south, a passenger speed restriction of 75 mph between MP 752.8 and MP 753.1, and Orange City, where an FEC line from New Smyrna Beach once crossed on the flat, heading for Blue Springs just to the west.

The line continues south, past a detector at MP 755.4, a passenger speed restriction of 70 mph between MP 757.0 and MP 757.2, a speed restriction of 65 mph for passenger trains and 60 mph for freights between MP 760.1 and MP 761.5 as the line curves south-southeast past the 11,289 ft. east side siding at Benson Junction (MP 760.8), where an FEC line once headed east, and south again, a speed restriction of 60 mph between MP 761.5 and MP 763.1 past Valdez, a bridge at Lake Monroe between MP 763.1 and MP 763.2, with speed restriction 50 mph, a continuing speed restriction of 50 mph between MP 763.2 and MP 765.9 as the line turns southeast, along the southwest shore of eponymous lake, past Rand Yard, a speed restriction of 20 mph between MP  765.9 and MP 766.8, and the 15,228 ft. west side siding at Sanford (MP 766.3), where there is a passenger station and the southern Auto Train terminal is located, on the east side of the line, with a former South Florida line heading east at Sanford Junction, and an ACL line  once headed west to Tavares,  from the same location, and the overall speed limit for intermodal trains falls to 60 mph.

There is a passenger speed restriction of 60 mph between MP 766.8 and MP 772.0 (with only 749 feet between MP 768.0 and MP 771.0), and the line turns curvily south-southwest, past Lake Mary, a speed restriction of 50 mph between MP 772.0 and MP 773.5, after which full line speeds prevail, a detector at MP 776.1, a speed restriction of 50 mph between MP 777.3 and MP 777.9, through Seminole County, a speed restriction of 60 mph for passenger trains and 50 mph for freights between MP 777.9 and 780.3, the 7,811 ft. east side siding at Longwood (MP 778.4), where the line turns curvily south, the north-facing spur at Casselberry (MP 779.2), a speed restriction of 50 mph between MP 780.3 and MP 782.0, Altamonte Springs, a speed restriction of 40 mph between MP 782.0 and MP 784.3, through Maitland, a speed restriction of 35 mph between MP 784.3 and MP 785.5, in Winter Park, as the line turns south-southeast, MP 784.7, where a stretch of double track, Rule D251 current-of-traffic, begins, a speed restriction of 25 mph between MP 785.5 and MP 785.9, in Winter Park, Winter Park (MP 785.6), where there is a passenger station, and SAL branch once headed east, and the line turns south-southwest, a speed restriction of 35 mph between MP  785.9 and MP 787.1, in Winter Park, with the route of that SAL line running just to the east as both lines curve south, a speed restriction of 25 mph starting at MP 787.1 and through Orlando, a stub of that SAL line tailing in on the east side, the 6,813 ft. west side siding at Orlando (MP 790.4), where the ex-SAL Orlando sub. trails in on the west side and there is a passenger station, MP 791.8, where single track, CTC, resumes, a road crossing at Kaley Avenue (MP 791.8), and MP 792.3, after which full line speeds prevail.

The line continues south, with a passenger speed restriction of 60 mph and a freight restriction of 45 mph between MP 793.6 and MP 795.5, through Pine Castle, from a road crossing at Holden Avenue (MP 793.6) to a road crossing at Lancaster Road (MP 795.5), a spur on the east side and a spur on the west side to the Orlando Central Park Industrial Track on the west side, the 6,989 ft. east side siding at Taft (MP 798.4), a spur on the west side and a wye on the east side with the line east to the Orlando Utilities Stanton Power Plant, a detector at MP 801.0, Flamingo, a passenger speed restriction of 65 mph between MP 804.2 and MP 807.4, a turn southwest and then back south again, a speed restriction of 40 mph between MP 807.4 and MP 808.8, through Kissimmee, after which full line speeds prevail, a former flat crossing with an erstwhile ACL line the 8,099 ft. west side siding at Kissimmee (MP 808.0), where the line turns southwest, and  there is a passenger station and the south-facing Suckles Spur.

 There is a passenger speed restriction of 65 mph between MP 812.3 and MP 812.6, as the line turns west at Campbell, a turn just west of due south, a detector at MP 819.8, Loughmann, the north-facing spur for Standard Slag & Gravel on the east side at Vertagreen (MP 821.3), a speed restriction of 50 mph between MP 824.6 and MP 825.5, through Davenport, the 4,310 ft. east side siding at Davenport (MP 824.8), a passenger speed restriction of 65 mph between MP 825.5 and MP 825.8, the 5,870 ft. east side siding at Haines City (MP 829.4), where an ACL line once headed south (on the east side), a speed restriction of 40 mph between MP 829.4 and MP 830.0, through Haines City, as the line turns west, and then west-southwest, Lake Alfred (MP 835.6, where the 4 mile Lake Alfred Spur heads south, a speed restriction of 50 mph between MP 835.8 and MP 836.3, through Lake Alfred, a passenger speed restriction of 65 mph between MP 837.2 and MP 838.1, a passenger speed restriction of 60 mph between MP 838.1 and MP 838.4, the 4,887 ft. north side siding at Auburndale (MP 839.7), a passenger speed restriction of 60 mph between MP 839.9 and MP 841.0, and the wye with the Miami sub. on the south side, where an SAL main line used to arrive from the north and make a flat crossing (MP 840.9), as the Lakeland sub. continues west.