A former Rock Island US&S TP-5 signal is passed by UP Train GMMS6P 28 at MP 233.6 on the UP Herington Sub. This is part of the former Rock Island "Golden State Route", which was owned for 16 years by the St. Louis Southwestern Railway, an SP Subsidiary, better known as the Cotton Belt. Another common name for this line was the "Cotton Rock", a corollary of the subsequent ownership after the CRI&P.
