Something else to considder, If you’re not ahead of me already, is how much space do you have? Your topic caught my eye because it’s exactly what I’m doing in a west coast theme, loosely based on Coos Bay OR, where I grew up. Local rail service was Southern Pacific. I chose the mid 50s-mid 60s, even though i was there from 1970-89.
I am not modeling any of the actual logging scenes, but do plan one of the many sawmills. It will sit on the waterfront of the bay (which was large, and fed by a number rivers and large streams), where logs were rafted to most of the mills. “Up the river” however, there were logging operations that used railroads to bring logs to the river to be floated downstream, or to send the logs to other mills that were not on the waterfront, or to bring logs to the Bay Area that were not from logging operations up the local rivers. These roads usually belonged to the logging- milling operations, such as Coos Bay Lumber. This was done until truck logging replaced the trains.
I also remember seeing logs themselves being loaded directly onto ships, as well as ships receiving chips from huge chip loading facilities, served by truck delivery. this was later, in the '60s and '70s, even to the present, but not nearly to the degree back in the days preceding the '80s.
Lumber was shipped out of the mills by rail and by ships, trucks later. Some of the mills loaded directly to the ships. (Conveniently, mine needs rail service)
There also was considderable coal mining and shipping out of Coos Bay, in the late 1800s, early 1900s. That was definately rail to ship service.
Then there is the large commercial fishing industry, served in part by rail to ship the product, even to the east coast.
Coos Bay also has a couple bulk petroleum products facilities where the product is brought in by ships, and delivered out by truck. That I don’t recall rail service to these facilities doesn’t mean they don’t or didn’t have it and I am m