Well, from the "handle" above, you could go out on a limb and guess Colorado roads,
and, surprise!, you're right! I model a fictional road that connects to the Santa Fe/
D&RGW "joint line" between Colorado Springs and Pueblo and goes off toward the
southwest. When in HO I stuck very closely to just collecting "Colorado" rolling stock
and have to an extent done that in the big boys' scale (however, there are strays
and orphans, but they won't appear on my layout). The two roads I use as models
are the Great Western (Colorado sugar beet road) and the Colorado Midland (killed
off by Big Brother during WWI). Still in the dream stage will be a connecting On3
2 rail DC shortline to interchange with this 3 rail shortline (I haven't decided whether
I will base this on C&S or D&RGW narrow gauge, or make it a fictional subsidiary) While I have a large sugar beet plant modeled from visits and photos, many structures are from O scale kits, most of those kitbashed, and quite a few are scratchbuilt, but chosen by appearance and rusticity, vs. being a model of a specific prototype structure. I have kit built, scratch built and built-up 3 rail rolling stock for Colorado Midland, Great Western, D&RGW, Missouri Pacific, Rock Island, CB&Q, C&S, FW&D, & maybe others specific to the region. (this has been going on for years)
In the area of the joint line interchange at the largest town, will be the sugar beet
plant, brewery, wholesale coal dealer, metal smelter and mill, and east of the front range, across the "joint line", will be a short branch out to grain elevators in the prairie.
The line southwest will have another longer high mountain branch, for logging and coal mining. Then the line climbs even higher into silver mining mountains, with mills and tipples, drops down into a desert gold mining area (think Great Sand Dunes ), both of these practically ghost towns and decrepit, as this is 1940, at the end of the Depression and well past the Silver Crash and mining boom. There will be stock pens for ranching in these towns. And the second largest town will be the terminal and
HQ for the road, also with a retail coal bunker, ore mill, larger stock pen and possibly
a feed mill and packing house so as to put heavier emphasis on ranching. This will be in a "park", a mountain valley. The On3 subsidiary will struggle along with ranching and a few still active mines. The whole plan is an around the wall, large space, point to point, with a reverse loop around the engine house in the terminal town and a Y and crossing connections with the D&RGW and the Santa Fe in the largest town. The
"joint line", shown as just two parallel tracks of maybe six feet in length that serve as a passing siding and switching escape, will also have Rock Island and MoPac connections that are just switches with a (very?)short section of track to the edge of the layout. (gotta lock those switches in place to keep from powering rolling stock
off onto the floor, and have dead space at the ends of the "joint line" for the same
reason) Trains will start at one end and work sidings through to the other. (no **** tree around and round) The grain elevator branch will be on a peninsula, the logging and coal branch, first to be built, and possible to operate separately as a unit, will be on a large table along a facing wall. It is planned to be serarated from the main line by a short tunnel. All this is on a big taped together Atlas computer plan printout (although track may be MTH Scaletrax) and measurements and radii have been planned to fit the space. In this space, a lot of it COULD, but won't, be paved with track. I hope to have a few feet of track running through the country side, although towns may have to be too close together to depict that. Operation is visualized as being very old school, with conventional engines and "blocks", and one person following trains from terminal to terminal. A shortline like this may have only one or two trains running, with one being in the hole, or switching the coal branch, or just steaming in a siding in one town while the crew goes to lunch, and another train operates elsewhere. Mixed trains, powered by ten wheelers, Mikados, Consolidations, or Decapods, and gas electrics will be the norm. Hopefully there will be somebody producing small two truck geared logging engines to work that branch, or MTH 2-6-O's and tank engines will be used. Guess I should stop building structures and build tables and lay track...the trains can't run in my imagination...