Kings Island & Miami Valley Railroad

The Kings Island & Miami Valley Railroad maintains two working locomotives. They were built by Crown Metal Products of Pennsylvania for the park opening in 1972 and were modeled after The General.

The #12 engine, also known as the "Kenny Van Meter", features a propane-fired boiler and has a total weight of 25 tons (engine and tender). It is a 2/3 scale replica of The General. It is painted blue. The locomotive's original name was Tecumseh after the Shawnee leader. Originally, it featured a balloon-style stack but it was replaced in the late 1980s or early 1990s to make it stand apart from the green engine. The blue engine also originally had two blue domes but were painted red to match the wheels in the late 1980s or early 1990s, when the balloon stack was removed.

The #19 engine, also known as the "Lew Brown", features a propane-fired boiler and has a total weight of 25 tons (engine and tender). Like its older brother engine, the #12, it is a scale replica of The General. The engine is painted green and was originally named Simon Kenton, after a famous Ohio frontiersman.

Kings Island maintains a total of 12 open air passenger cars, arranged as 6 cars on each engine. 6 of the cars are painted green, and are typically matched with the No. 19 engine. The other 6 cars are painted red, and are matched with the No. 12 engine. Capacity per completed train (6 cars) is 465 park guests. Each passenger car has a series of seals depicting Native American Tecumseh and frontiersman Simon Kenton (after whom the engines were originally named) with the railroad name.

The Kings Island & Miami Valley Railroad features two train stations. Losantiville station is considered the line's main station, and is located in the Rivertown section of the park, next to the entrance of White Water Canyon and Mystic Timbers. It is a covered station and platform. There is also a station located at the entrance to Soak City Water park, which is an uncovered concrete pad station that, unlike the Losantiville station, is a curved station.

Each train is manned by a total of four associates; an Engineer, Fireman, Front Conductor, and Back Conductor (position of back conductor may be eliminated with the operation of a scaled down train of three passenger cars, rather than the regular six). The Engineer is in charge of the operation of the locomotive, while the Fireman watches over the boiler pressure levels, and maintains the fire and water levels in the boiler. The Front Conductor is in the charge of the movement of the train, as well as the entertainment and wellbeing of the passengers aboard. Additionally, each station must be manned by a Station Master who is responsible for the safety of passengers in the station, helping passengers load and unload, as well as keeping capacity.

Each morning, the train crew (Engineer and Fireman) prepare the engines for operation at the engine house, located near the Losantiville station. Once the first train of the morning reaches the Losantiville station, the front conductor and back conductor board the train. Once the train is staffed completely, the train must do a full test cycle around the track before passengers can be loaded. During the morning hours, only one engine is in service. Midway through the day, the second train is brought into operation. Opening procedures for the train brought out second differ slightly, in that the front and back conductors board the train in the engine house, rather than at the Losantiville station.

• One Short (loud blow) - Train arriving at station.
• Two Short - Train departing station / Train beginning forward movement.
• Two Long, One Short, One Long - Approaching railroad crossing.
• Three Short - Train is backing up.
• One Long - Distress.

The Front Conductor is in charge of the movement of the train. During a normal passenger loading procedure, the station master must clear the station platform with a thumbs up signal, at which point the Back Conductor must clear the Front Conductor for movement with a hand signal known as a "Highball". Once the Front Conductor verifies the Highball from the Back Conductor and the clear from the Station Master, the Front Conductor will "Highball" the Engineer, who then proceeds with operation of the locomotive. "Highball" hand signals are also given at two locations along the train route, between the Front and Back Conductor, to signal that everything is clear on all six passenger cars.

After the water park closes, the park resumes one-train operation for the rest of the night. The last train leaves at park closing and backs the train into the locomotive garage (engine house). After the last cycle has completed for the night, the Engineer and Fireman proceed to back the other train into the engine house from the Losantiville station.