Now Available: Union Pacific’s Green River - Kemmerer Route

Sep 19, 2025

Milepost Simulations now brings Union’s Pacific main line
railroading across Western Wyoming to Train Simulator Classic –
with the bustling Green River - Kemmerer Route!

In all of America there are few rail lines more bustling today nor richer in heritage than the Union Pacific’s crossing of the great America West.

Now, Union Pacific’s busy and scenic crossing of the Green River Basin of western Wyoming comes to Train Simulator Classic with the Green River – Kemmerer Route developed by Milepost Simulations.

The Green River – Kemmerer Route is set in the 1990s and extends from Green River via Peru and Granger to Moyer Junction at Kemmerer, Wyoming, a distance of 72 route miles.

The segment of the route westward from Green River to Granger was a part of Union Pacific’s original transcontinental line of 1869. From Green River, it crosses the river which bears the same name, then climbs from the river valley on a .82 percent grade to the line summit at Peru. In the 1990s, this portion of the route was the eastern end of Union Pacific’s Salt Lake City Subdivision. Thirty miles west of Green River – at Granger – the Sall Lake City Subdivision swung west-southwest toward its own namesake city and connected with Union Pacific’s Pocatello Subdivision.

From Granger, the new Train Simulator Classic route re-creates the segment of the Pocatello Subdivision extending northwest 42 miles to Moyer Junction at Kemmerer, Wyoming. In history, this was the eastern end of the Oregon Shortline Railway, which came under Union Pacific control in 1898 and served as UP’s gateway to the Pacific Northwest.

The two sections of the route offer distinctive operating experiences, as the Salt Lake City Subdivision is primary double track and fast-paced (with track speeds of up to 70 mph). The Pocatello Subdivision is single track with passing siding and has curves which often limit track speed (although it too features 70-mph running).

First and foremost, Union Pacific’s crossing of the Green River Basin was (and is) a steel artery for priority and heavy tonnage. But the line has also been a major tonnage producer, with soda ash deposits east of Granger and coal mines in the area of Kemmerer proving the Union Pacific with traffic.

[LINK] Now available, the remarkable Green River – Kemmerer Route includes four modern Union Pacific General Electric and Electro-Motive diesel types and your skills as an engineer will be put to the test by the route’s mix of moderate grades, heavy tonnage, and mile-a-minute running.

The Green River – Kemmerer Route for Train Simulator Classic features:

• Union Pacific’s rugged, scenic, and fast-paced main line across Western Wyoming from Green River via Granger to Kemmerer, 70 route miles.

• The rugged, remote scenic beauty of the majestic Green River Basin.

• Union Pacific yards, facilities, and lineside shippers at locations such as Green River, Solvay, Westvaco, Granger, and Kemmerer

• A quartet of modern Union Pacific diesel locomotives, including the General Electro Dash 8-40C and Electro-Motive SD90MAC, SD40-2, and GP38-2.

• A variety of freight equipment ranging from intermodal equipment to boxcars and covered hoppers, with many in Union Pacific and predecessor liveries.

• Seven challenging and authentic career scenarios, featuring Union Pacific freight operations of the 1990s across the length of the busy route.

Milepost Simulations’ Green River – Kemmerer Route for Train Simulator Classic puts you at the throttle to experience Western railroading on one of America’s busiest and most historic railroads – and the new route is available now at the Steam Store!

Now, Union Pacific’s busy and scenic crossing of the Green River Basin of western Wyoming comes to Train Simulator Classic with the Green River – Kemmerer Route developed by Milepost Simulations. At the eastern end of the now-available route, Union Pacific General Electric Dash 8-40C 9120 leads a westbound grain train from the historic railroad town of Green River, Wyoming.

The Green River – Kemmerer Route is set in the 1990s and extends from Green River via Peru and Granger to Moyer Junction at Kemmerer, Wyoming, a distance of 72 route miles. At the eastern end of the upcoming route, a pair of Union Pacific EMD GP38-2 tend to switching duties in Green River’s sprawling yard complex.

From Green River to Peru, the double-track Union Pacific’s Salk Lake City Subdivision climbs out of the Green River Valley on a .82 percent grade. Union Pacific Dash 8-40C 9120 and kin are making their westbound departure from Green River with famed Castle Rock standing in the distance. The new route puts you in the engineer’s seat of the General Electro Dash 8-40C and Electro-Motive SD90MAC, SD40-2, and GP38-2.

In addition to being an artery for transcontinental tonnage, UP’s Green River – Kemmerer Route is a major tonnage producer, with soda ash deposits east of Granger and coal mines in the area of Kemmerer proving traffic. At Westvaco, a UP EMD SD90MAC is on the point of a soda ash unit train (above), while a pair of EMD SD40-2 diesels (below) switch the massive soda ash facility.

West of Granger, the upcoming Green River – Kemmerer Route re-creates Union Pacific’s Pocatello Subdivision (historically the Oregon Shortline Railway), a single-track, often curving route which nonetheless frequently features fast running.

At Opal on the Pocatello Subdivision, a GP38-2 powered local is in the clear as an eastbound Union Pacific intermodal train rolls past. With the Green River – Kemmerer Route, you’ll handle intermodal, manifest, unit train, and local operations.

The town of Kemmerer rests at the western end of the upcoming Train Simulator Classic route and features a yard and nearby Moyer Junction. With heavy coal tonnage coupled behind, a trio of powerful Union Pacific EMD SD90MAC diesels prepare to pull from Kemmerer Yard on a wintry day.