The line was formerly known as the Minnesota Transfer Railroad. It was privately owned by the major railroads serving the Twin Cities area.
It is based out of a roundhouse on Cleveland Ave. in St. Paul just blocks south of the former Amtrak station and its main yard is just to the north of the station.
Atari 2600: 3D Tic-Tac-Toe (Internet Archive) 3-D Tic-Tac-Toe is a video game released by Atari, Inc for the Atari 2600 console and Atari 8-bit computers in 1980.
Minnesota Commercial Railway (Wikipedia) The Minnesota Commercial Railway (reporting mark MNNR) is a short line railroad in the United States.