Tremont and Gulf Railroad No. 30 is a preserved class 30 2-8-2 "Mikado" steam locomotive built by the Baldwin Locomotive Works in 1917 for the Tremont and Gulf Railroad. It was used by the T&G for hauling freight trains in branch lines throughout the state of Louisiana until 1954, when it was sold to the Magma Arizona Railroad and renumbered 7. There, the locomotive was used for hauling smaller freight trains in Southern Arizona, until its retirement in 1968. Afterwards, it continued to be sold to various owners and groups, until it was purchased by the Texas State Railroad in 1974. It was restored to operating condition and used to pull tourist excursion trips between Rusk and Palestine, Texas as No. 400 from 1978 to 1998. Since 2014, the locomotive has been back under steam on the TSRR a