The Alaska Railroad is my "railroad-of-choice" in O gauge--along with the U.S. Army Transportation Corps--as my ever-growing collection of ARR motive power and rolling stock will easily attest (25 ARR locomotives and a whole lot of cars).
It's popular with me because I am fascinated by the state; enjoy studying the history of that line; like the paint scheme; and because, up until recent years, not many manufacturers or modelers seemed to pay a whole lot of attention to the ARR. That last justification has obviously changed, though, because there's a growing assortment of Alaska RR items being offered by MTH (especially) and Lionel, among some others. The vast majority of my own ARR motive power is MTH PS2/3 and Lionel Legacy/TMCC.
The ARR did not have any large steam power. There's also very little O gauge steam offered in ARR livery. MTH made an 0-6-0 some years ago and has a new PS3 0-6-0 listed in its new catalog. Lionel offered an 0-4-0 with conventional control which I hope to upgrade to TMCC. I believe MTH or Lionel also offered a Dockside in Alaska livery at one point, but I don't have that model. I think that's about it to date.
The Alaska RR has and/or had an extensive motive power roster.
I hope this helps! It's a fascinating railroad operating in an equally fascinating state.
