I will look, can I say for the tracks in the pits, I believe there should be more, the levels were alot shorter around 20-40ft high each. And you are modeling the 1970's era? If so the railroad was operating on 2-3 levels while the rest of the pit was by trucks.(Trucks taking the ore to a dumping area, where it was transfered by shovel to rail and hauled to the smelter, by this time the shovels didn't directly load the trains from where the ore was blasted. But hauled by truck to a central loading point.) I'll send some pictures when I get time. Remember this was in the 70's a hard decade for the copper industry, as whitness to the fall of The Anaconda Company, and running a railroad in the entire pit was getting costly, so trucks started to take over, and electrics were starting to fade out near the end of the 70's to be replaced by diesels.
edit:
Speed limit was around 15-35 miles an hour
January 12, 1979
Electric power was cut off to the Ore Haulage catenary; dumpers and road trains are completely dieselized.
March 1972
One thousand 100-ton ore cars were in serviceEach ore car was making an average of 118 trips per month
There were 18 trains per day on the Ore Haulage mainline
- Each train used two locomotives and one caboose
- Each two-unit locomotive consist made six trips between daily inspections
- Three shifts each with two crews operating two trains
- Each crew made three trips between the mine and one of the three mills
There were seven cabooses in service
Bingham & Garfield Railway was the second railroad to receive Centralized Traffic Control by General Railway Signal Company
The Bonneville mill received about 300 cars of copper ore per day.
Chino number 4 became Kennecott Utah Copper Division number 778 and was used in the Bingham mine
July 1972
An article about railroads in Utah showed traffic figures for Kennecott's private electrified railroad as being 1,196 cars moved per day, with about 85 tons in each car. A average of 108,000 tons were moved every day. "Kennecott officials claim their road to be the one of the world's busiest."
(Deseret News, July 22, 1972)
Here is a good website to go to:
http://utahrails.net/bingham/bingham-index.php
It has alot of good information and photos there.