Help me choose a prototype location

Hi everyone. My apologies in advance for the length of this message, but I need some help putting my railroad in the real world and would really appreciate your insights and advice. I have been thinking about this for quite a while, but I am still struggling with it.

I don’t have a specific favorite prototype, so what is probably an easy decision for many folks is proving to be a challenge for me. My preference is a layout based on a prototype that is both plausible and meets my goals (below), although I am willing to abuse reality/history if necessary. The layout itself will be HO with a mainline of about 2.5 scale miles in an irregular, 500 sq. ft. area. It will be a single level walkaround with the mainline not repeating any scenes. I’ve settled on a mainline design, so what is left is specifying the grade profile and locating the towns, spurs, sidings and industries.

Desires:

  • Colorado, Oregon or British Columbia/Alberta location, with good scenic opportunities (non-negotiable, as this was dictated by my wife[:)])

  • Prototype railroads only, with widely available, good quality engines and rolling stock (I don’t want to HAVE to deal with brass, custom paint jobs, etc.)

  • Good sources of information on industries, equipment and location (I live in the midwest so my opportunities to see things first-hand are limited, although I have been to all the candidate states/provinces)

  • Transition era, around 1950

  • “Typical” model railroad operation opportunities: Mostly single track, local and through freight, local and through passenger, switching opportunities with a mix of industries, and a medium-sized yard

  • I’m open as to the prototype railroad(s), but I do already have some UP equipment that I’d like to use

The Oregon Trunk is currently at the top of my list, although I don’t have nearly as much information as I need. It would require some fudging (e.g., I believe the prototype tends to run tra

CNW Powder River Basin

UP’s line from Cheyenne to Laramie over Sherman Hill. Where else?

CNW’s Powder River line.[:D]

The prototype railroad I chose was where I grew up and where I still live. It really doesn’t matter where that is. (CSX Henderson Subdivision) The area you model should be something that inspires your model railroading genius. A place that you know first hand or could be easily researched.
Hope this helps and good luck.
Roger W.