Location: Marion, Ohio
Railroads: CSX, NS
50-60 trains a day
Directions: Marion is located approx 35 miles north of Columbus on US 23. Interlocking located on west side of city on SR 309 / 95.

Marion Union Station is an Excellent location to get up close to the diamonds with out trespassing. The east west CSX ex NYC/Conrail Indy line is crossed by the CSX Columbus sub and the NS Sandusky District. The Diamonds are approx 20 yds apart and the Station is located between the two North/South lines on the south side of the Indy Line. The station is a museum dedicated to preserving the station and its railroad history. Interlocking machine and old Semaphores are displayed inside. Old tower has been moved to the station from across the tracks, completely restored and lowered a story (still two stories tall). Stairs to tower give a good overhead view of NS and CSX Indy Trains.

http://www.mariononline.com/agencies/MUSA.htm

CSX Indy Sub: Runs East/West between Cleveland and Indianapolis. A small yard is just west of the diamonds is visible. Old Conrail detector at New Bloomington to the west is audible if scanning.
160.800 Road/Dispatcher

CSX Columbus Sub: Tracks run North/South on the west side of station between Columbus and Toledo. Signals are visible to the north from the station. Also Old C&O Cantilever signal bridge and signals stands next to station grounds.
160.230 Road, 160.320 Dispatcher.

NS Sandusky District: The Busiest line through Marion runs on the East side of the station between Columbus and Bellvue. Old Norfolk and Western Color Position Signals protect diamonds. NS also has a small yard to the north of the diamonds. Also of note is old concrete Coaling tower located to the north of Marion, Visible from SR 23, NS trains still pass underneath.
161.190 Road/Dispatcher.

The Shovel Restaurant located in the Parking lot of Marion Union Station is excellent. Everything there is good and it helps that you do not have to leave track side to eat. Only problem is that the restaurant does not have any windows so trains can not be seen from inside unless you look at the security camera that looks at the parking lot with the NS and CSX Indy line trains visible in black and White. But the Food is worth a missed train or two.

Other railfan hotspots in the area include Fostoria (50 miles north along CSX), Attica junction (40 miles north along NS), Willard yard (10 miles east of Attica junction), Lima (50 miles west on 309)