Marion (CSX/NS Diamonds)

Marion Union Station at 532 W. Center Street puts you trackside within feet of three double-track mainlines: the NS Sandusky District (ex-PRR, north–south), the CSX Columbus Subdivision (ex-C&O, north–south), and the CSX Mount Victory Subdivision (ex-NYC/Erie, east–west). Two sets of double diamonds—eight in total—frame the station property, and every train must pound across at least one set to pass through town.

The station grounds are open 24 hours a day, 365 days a year. Free parking is available in the lot adjacent to the station. A low chain-link fence surrounds the property, but the Marion Union Station Association has placed plastic tubing over the top rail so photographers can comfortably rest their arms while shooting. On the NS side near the parking lot, there is no fence at all—but do not trespass onto railroad property, as Norfolk Southern maintains an office directly across the tracks and employees have been known to confront trespassers.

A scanner is essential here. All traffic past the diamonds is controlled by CSX dispatch, and trains on all three routes call block signals, giving you advance notice of approaching movements. On the NS Sandusky District, there is a defect detector at milepost 56 north of Marion near Monnett. On the ex-C&O Columbus Sub, detectors are at MP 58.9 north of Harpster and MP 38.7 to the south. On the Mount Victory Sub, a detector sits at MP 110.1 near New Bloomington to the west. NS trains sometimes call the CSX dispatcher on the radio for a clear route through the diamonds, which provides additional heads-up time.

Marion is at MP 101.5 on the CSX east–west line, MP 45.6 on the CSX north–south line, and MP 45.2 on the NS Sandusky District.

Marion sits on the flat, open terrain of north-central Ohio's till plain, offering unobstructed sight lines in every direction along the tracks. The station itself is a handsome 1902 brick structure featuring marble walls, patterned mosaic tile floors, and a stained glass skylight—architectural details that survived from its days serving Erie, C&O, and New York Central passengers. Adjacent to the depot stands the restored AC Tower, the former Atlantic Crossing interlocking tower that once controlled all four railroads through the junction. An Erie Lackawanna bay-window caboose (C306) is displayed on the grounds, and a model railroad club occupies a former express building on site.

The industrial backdrop of grain elevators, the NS yard to the north, and the CSX former Erie yard to the west frames the rail action. A concrete coaling tower on the NS line is visible north of the city near the US-23 bypass—a rare surviving structure worth a side trip. Low-rise commercial buildings along Center Street round out the scene. In winter, the flat horizon stretches wide for long golden-hour light across the diamonds. Summer brings muggy Ohio heat but extended daylight for catching the full parade of trains.

Marion sees approximately 60 to 80 freight trains per day across its three mainlines, all freight since the last passenger train (C&O's connector to the George Washington) departed in 1971.

Norfolk Southern Sandusky District (ex-PRR): The busiest line, carrying roughly 40 trains per day. This former Pennsylvania Railroad route between Columbus, Bellevue, and Sandusky is now part of the NS Heartland Corridor, a key conduit for intermodal freight between Norfolk, Virginia and Chicago. Traffic includes intermodal, coal, grain unit trains, and manifest freights. Named symbols include trains 170/171 (Chattanooga–Conway), 18M/19M (Elkhart–Crewe), 276/277 (Chicago–Norfolk), and local L38 based out of the NS yard in Marion.

CSX Mount Victory Subdivision (ex-NYC/Erie): Handles 15–20 trains daily moving east–west between the Northeast and Indianapolis. Traffic is a mix of manifest freights, auto racks, and intermodal. Notable is the Schneider National intermodal traffic: CSX container trains Q107/Q106, running to and from Kansas City Southern at Rose Lake (East St. Louis), originate and terminate five days a week at the Marion Industrial Center on the east side of town—these frequently run with KCS power. CSX also operates overnight turn Q109 between Marion and the North Baltimore container facility. Local C799 serves this subdivision from the former Erie yard.

CSX Columbus Subdivision (ex-C&O): The quietest line, seeing roughly 10 trains per day running north–south between Toledo and Columbus. Traffic is primarily coal, grain, and sulphur unit trains, with manifest freights being scarce. Local H792 serves this route from Parsons Yard in Columbus.

A connecting track between the ex-C&O and ex-Conrail lines in the northwest quadrant of the junction handles 5–7 trains per day—manifest freights enter on the Mount Victory Sub and take the connection north toward Toledo. These are the only trains that do not pass directly in front of the depot, though they remain visible from the station grounds. Foreign power appears almost daily. Both CSX and NS operate locals based in Marion, and the CSX locals occasionally run with cabooses.

The station property offers multiple shooting angles covering all three mainlines with minimal obstruction from the low perimeter fence.

Station Platform / North Porch: The classic angle for westbound CSX trains on the Mount Victory Sub. Morning light works best here. The diamonds gleam in the foreground as trains roll past the brick station facade. For the C&O line, the late afternoon is poor from this position due to backlighting.

NS Side / Parking Lot: Walk to the parking lot area on the north side of the property for unobstructed shots of NS Sandusky District trains. Late-day sun backlights northbound trains crossing the diamonds. There is no fence on this side, but stay on station property—the NS office is directly across the tracks.

AC Tower Steps: The restored interlocking tower provides a slightly elevated vantage point. Standing on the steps yields dramatic close-up shots of trains pounding the diamonds with ground-level vibration adding to the experience.

West Center Street Sidewalk: Walk out to the sidewalk along Center Street to read the northbound home signals for the CSX Columbus Sub (ex-C&O). C&O-style signals formerly guarded this crossing, though many have been replaced by modern signal masts. Pennsylvania-style position light signals survive on some NS approaches—among the few remaining on the Sandusky District.

Focal Lengths: A standard 70–200mm zoom covers most angles from the station grounds. Wider lenses (24–35mm) capture the full scope of diamond crossings and multi-train meets. Night shooting is possible but lighting is limited—no dedicated platform lights exist at the station. Diamond sparks after dusk make for dramatic long-exposure shots.

Marion Union Station opened on July 31, 1902, as a joint facility serving the Chesapeake & Ohio Railway, the Cleveland, Cincinnati, Chicago & St. Louis Railway (later acquired by the New York Central Railroad in 1906), and the Erie Railroad. The station featured marble walls and patterned mosaic tile floors. Four major railroads ultimately served the city: C&O, Erie, NYC, and Pennsylvania, earning Marion the nickname "train-watching capital of Ohio."

The city's rail significance traces back to the 1870s when the Atlantic & Great Western (predecessor of the Erie) first reached Marion in 1864. Railroad magnate Jay Gould leased the A&GW and formed the Atlantic & Chicago to build between Marion and Chicago. The "AC" in AC Tower stands for "Atlantic Crossing," a reference to this era.

In 1923, Marion Union Station served as the last stop on President Warren G. Harding's funeral train—a significant moment in both local and national history. During World War II, the station functioned as a canteen stop for soldiers, with local volunteers providing refreshments.

The station's last long-distance passenger service ended in 1971 with the discontinuation of the C&O's connector line to the George Washington. The Marion Union Station Association now owns the station and operates a museum inside. The restored AC Tower, originally located on the north side of the tracks and much taller than its current form, was purchased from Conrail and moved by crane to its present location next to the station. Inside, the tower retains its original equipment and appearance. The museum also displays the CTC panel from former F Tower in Fostoria and a section of pistol-grip levers from BE Tower in Berea.

Marion's distinction among Midwestern railfan hotspots lies in the sheer concentration of action visible from a single, safe, public location. Three sets of double-track mainlines cross at grade within a few hundred feet of the station, producing eight individual diamond crossings—more than anywhere else in Ohio at such close range. Fostoria, often compared to Marion, has three sets of four diamonds, but you cannot get nearly as close.

The presence of two competing Class I railroads—CSX and NS—using the same physical crossings creates operational drama that single-railroad locations cannot match. It is possible, though uncommon, to witness four trains simultaneously: two CSX trains crossing the diamonds on the Columbus Sub while two NS trains pass each other on the Sandusky District. Because all three lines reduce to single track north and south of town, dispatchers frequently arrange meets at Marion, increasing the chance of seeing multiple trains at once.

Marion also draws railfans for its frequent foreign power sightings—KCS units on the Schneider intermodal trains are regular visitors, and run-through power from other roads appears almost daily. The combination of a restored historic station, a functioning museum with hands-on displays, 24-hour public access, and 60–80 daily freight trains makes Marion one of the most accessible and rewarding trainspotting locations in the eastern United States.