Railroads Crossing

Seven, that's the time we leave, at seven
I'll be waiting up for heaven
Counting every mile of railroad track
That takes me back
--Doris Day 

Nice map of US railroads. Time stamped 2020 so slightly out of date.

Mergers have left the industry with six major players. US operators include BNSF Railway (owned by Berkshire Hathaway), CSX (CSX), and Norfolk Southern (NSC), and Union Pacific (UNP). Two Canadian operators, Canadian National (CNI) and Canadian Pacific (CP), also have substantial presence.

Although their tracks overlap, you can see where each operator's home turf is.

As might be expected, the majors are now in the process of gobbling up smaller regional and local operators.

position in CSX