railroad continues to use the remaining track to reverse the train's direction. Contrary to the perceptions of the railfan community regarding the disconnection, the railroad remains subject to the FRA's jurisdiction and continues to maintain the equipment and trackage accordingly. In 2011, major upgrades of the track, passenger cars, and diesel locomotives were performed. The diesel locomotives received new motors and other upgrades, as well as a new paint scheme. The steam locomotives received some cosmetic restoration at this time as well. The railroad had de-accessioned its last remaining steam locomotives in early 2013, and currently owns and operates diesels exclusively. Locomotives Stone Mountain originally had three steam locomotives, the "General II," "Texas II," and "Yonah II." The SMRR named the engines after the famous engines of The Great Locomotive Chase, and were given nineteenth century style smokestacks and headlights. Despite these modifications, the engines, having been built between 1919 and 1927, still have noticeably modern appearances, with larger proportions than their ancestors and have more advanced cylinders, valve gear, and other modern applications. While steam engines ceased running in the 1980s, they continued to "pull" trains for some time. In these instances, one of the steam engines was coupled in front of a diesel which, while disguised as a baggage car or auxiliary tender, would push the engine. The diesel's controls were placed in the cab of the engine and air piped from the diesel's main reservoir to allow the steam engine's whistle to sound. Aside from the whistle, the steam locomotive remained inactive, with the diesel being the train's sole motive power. In the late 1980s and early 90s, the railroad supplemented its GP7 and GP9 diesels with ones inherited from the recently dissolved New Georgia Railway, which have pulled trains regularly since. At that time, the steam engines would only be pushed on special occasions, and no attempt was made to disguise the diesel behind it. The practice of pushing the steam engines ended in 2002, and they remained within the yard until being donated to other tourist railroads or museums, the first leaving the railroad in 2008, followed by the remaining two in 2013. The Stone Mountain Railroad currently has the following locomotives: 6143 and 6147 - Two FP7A diesel locomotives built by EMD in 1950 for Southern Railway's Cincinnati, New Orleans and Texas Pacific subsidiary. SOU successor Norfolk Southern sold these diesels to the New