msernak,
Minnesota is the "Gopher state," much like Wisconsin is the Badger state and Indiana the Hoosier state, etc. The little rodents are common among the prairies, however, how Minnesota became known as "The Gopher State" actually has ties to railroads...
In 1857 a political cartoon appeard in a newspaper (not sure which one off hand) that was a commentary on a railroad funding bill and depicted a group of railroad barrons as gophers hauling the territorial legislature (Minnesota was still a territory, we didn't achieve statehood until 1858) in a car behind them.
Here's a little more about Goldy ("The Golden Gopher"), our state mascot at Wikipedia.
http://en.wikipedia.org/wiki/Goldy_Gopher
This is also why I've named my proto-freelance model railroad (currently a suspended project) the "Gopher State Railroad" (GSRR) and have the current "phase III" paint scheme as a maroon and gold theme that mimics the MN State Patrol vehicles.
As for the MNRR...
I goofed on the reporting marks, it should have been MNNR (double n not double r). And no, I was not referring to Metro North (although it is an interesting railroad in and of itself) I was referring to the Minnesota Commercial Railway. The Minnesota Commercial is a shortline (bridge line?) railroad that operates in the twin cities and is noted for having one of the largest fleets of ALCo. locomotives in the country... not to mention the only TWO ALCo. RS-27s left in existence.
Here's more about it...
The Minnesota Commercial's website...
http://www.mnnr.net/
Wikipedia (again)...
http://en.wikipedia.org/wiki/Minnesota_ ... al_Railway
Fan site with maps and info. ...
http://www.mnnr.org/
And I would be remiss if I were to omit Rolf Stumpf's "ALCo. World" from the list...
http://alcoworld.railfan.net/minncomm.htm
Hope that answers some of your questions.