The Brooker Subdivision is a railroad line owned by CSX Transportation in Florida.
[1][2] The Brooker Subdivision from Starke to Hainesworth (just west of LaCrosse) was originally built from 1863 to 1894 by the Atlantic, Suwannee River and Gulf Railway, which would eventually run in its entirety from Starke east to Wannee (which is why the junction with the Wildwood Subdivision is still known as Wannee Junction).
[4] From Hainesworth to Newberry, the line was originally part of the Jacksonville and Southwestern Railroad which was built in 1899.
In the early 1970s, the Wannee Subdivision from Brooker to Hainesworth was abandoned along with much of the original Atlantic, Suwannee River and Gulf Railway.
Trains could still access Gainesville and Newberry via the former Jacksonville and Southwestern Railroad from Mattox.