Found this while researching rail operations in Ogden, UT. The Ogden yards in the Wasatch route is quite extensive, and with the release of DTM's UP F3's and the Diesel Workshop's UP AS-616, there is more than enough period correct locomotives and rolling stock for some prototypical yard / local scenarios. Just wanted to pass this on for anyone who might be interested.
https://utahrails.net/ogden/ogden-industry.php