What timeframe do you mean by "DSP&P" for the simulation?
Lately I've been researching station layouts from Alpine (later Fischer) station to Alpine Tunnel station during the DSP&P and DL&G eras, 1882 to 1898. A rabbit hole I fell down again recently. My experience is the station maps published in books for St Elmo through Woodstock need to be taken as starting points, maybe snapshots of a specific date, but not necessarily definitive answers. I'd sure like to see the list of source DSPP/UP/DLG maps and station plats you have that aren't in the various books.
What I know is that the 1917/1918 ICC maps reflect a very late world, where trains didn't run east of Pitkin except to sometimes get to cut lumber near Quartz and the section from Hancock to Buena Vista was a shadow of its happier days, isolated from the rest of the C&S. A lot of the world the South Park built had disappeared by WWI and even some features thought to exist in South Park days didn't come until after the C&S took over. Photos and newspapers give a lot of hints and details not seen in the published maps. Lady Murphy tank and siding (and spurs after 1887) were gone by 1890/91, Romley (originally Murphy's Switch) saw sporadic layout change from 1882 into the 1900s, the Hancock wye didn't exist before about 1902, the Pawnee Mill's spur and likely switchback in St Elmo only came in 1892 and was long gone by the ICC map. The Allie Bell and Flora Bell mines are C&S era, as is Sherrod. Then there's the St Elmo turntable...and the Grizzly Gulch water tank...and dang, don't get me started on the Alpine Tunnel station!
As to mines and mills, yeah, there isn't a lot of stuff out there. Pitkin, Quartz, Murphy/Romley/Morley/Lady Murphy, St Elmo, Iron City (Forest City) all had mines and/or mills. Stations like Woodstock, Sherrod, Hancock or Alpine were more loading and jump-off points. St Elmo was the busy mill town on Chalk Creek and the various Murphy mines were the primary consistent producers along this entire stretch from 1880 to 1926.
