In Part 1 of the 7Idea Pocatello Subdivision series, there are not only a big parade of diesels hauling freight through the southeastern part of the Potato State itself, but also a visit from Big Boy 4014 with Heritage Unit 1983 on its eastbound return trip from Roseville California to Cheyenne Wyoming via the Great Salt Lake, Silver Zone Pass, the feather river canyon where the 1941 Alco Built 4-8-8-4 made a visit to the Western Pacific Railroad Museum in Portola, & Donner pass, as these scenes were filmed in January & July of 2024. Locations for part 1 include Pocatello Yard with Ross Park that has centennial unit 6901 (the sister engine to 6936 at the Railroading Heritage of Midwest America), & 2-8-2 mikado 2005 siting on display with Oregon Shortline Caboose 5784 between the locomotives, Inkhorn along the Portneuf River, McCammon Junction where it connects to the Ogden Utah line, Lava Hot Springs, Pebble, Bancrofft, Talmage with Highway Route 30, Soda Springs Junction with a Geyser, a Motorized Railway Bus/Galloping Goose on display, some snow busting equipment, since-retired Dash 8's & Dash 9's on storage tracks, & the Nearby Dry Valley Branch, Manson with Locomotive 5379 running light all alone in one scene, & ends at Montpellier Idaho. There is also Stock Footage from other 7Idea shows: UP's Idaho Mainline Trilogy, & the Blue Mountains. A couple of Southern Pacific units are also included as well.