[?]

I did find an STB notice. In the late 1990's the TSBY purchased the following trackage from the GTW.

"Tuscola and Saginaw Bay Railway Company (TSBY), a Class III common carrier, has filed a verified notice of exemption under 49 CFR 1150.41 for its acquisition of a Grand Trunk Western Railroad Incorporated (GTW) rail line extending from milepost 105.0 to milepost 109.46, in Owosso, MI, including a short connecting track extending from milepost 63.9 (approximately milepost 107.5 on the first segment) to milepost 64.4, in Owosso, a total distance of approximately 4.96 miles (Owosso
Trackage)."

They also filed to continue using the trackage rights over the GTW tracks

"(1) Over GTW's line between milepost 94.0 and milepost 97.5, in Durand; (2) over Central Michigan Railway Company's (CMGN) main line between milepost 97.5, in Durand, and milepost 105, in Owosso; and (3) within CMGN's San Yard, between milepost 105 and milepost 106, in Owosso. The total distance of TSBY's operations on the Durand - Owosso Line is approximately 12 miles."