Union Pacific’s Big Boy No. 4014 has spent most of its post-restoration life on familiar ground, in the mountain grades and high plains of the American West where the 4-8-8-4 class earned its legend hauling wartime freight over the Wasatch Range. But this summer, for the first time since it rolled out of ALCO’s Schenectady works in 1941, the world’s largest operating steam locomotive is venturing east of Chicago, and it’s doing so on someone else’s railroad.
The eastern leg of Big Boy’s 2026 coast-to-coast tour, which departed Cheyenne on May 25, is running over Norfolk Southern trackage through the Midwest, Great Lakes, Ohio Valley, and Northeast. The collaboration between UP and NS is unprecedented in the modern excursion era. This is a Class I steam program operating across another Class I’s network, with both railroads contributing rolling stock, logistics support, and commemorative equipment to a joint consist.
The train that’s now threading its way through the eastern half of the country is a lot more than Big Boy and a string of support cars. Norfolk Southern has assembled a remarkable consist to accompany No. 4014 on its home territory.
On the UP side, the locomotive has been traveling with Heritage Fleet passenger cars and two commemorative diesels: No. 1616, the Abraham Lincoln locomotive honoring the 16th president and UP's founder, and No. 1776, carrying the emblem of the America250 Semiquincentennial Commission. On the eastern leg, NS has added its own Heritage Fleet equipment, including four historic business cars. Among them is the Marco Polo, a restored Pullman car once used by President Franklin D. Roosevelt.
Probably the biggest visual statement is Norfolk Southern’s brand-new America’s 250 locomotive series, unveiled on May 20. Six custom-painted units (three EMD/Progress Rail models (Nos. 1776, 2026, and 250) built in Muncie, Indiana, and three Wabtec/GE units (Nos. 8096, 8118, and 8143) from Erie, Pennsylvania) each wearing a distinct patriotic scheme. The series includes The Bell (No. 1776), honoring the Liberty Bell and its historic rail journeys on the Pennsylvania Railroad; The Lady Liberty (No. 2026), inspired by the Statue of Liberty; The Freedom (No. 250), featuring a bald eagle in flight; and The Stars & Stripes (No. 8118), carrying the official America250 mark. Each locomotive was painted at NS’s Juniata Locomotive Shop in Altoona, Pennsylvania, where the skilled craft workers who brought the designs to life described the project as something that meant a little more than the usual work orders.
The full consist amounts to one of the most visually striking and historically layered trains to run on American rails in decades.
Among other reasons, one of the most significant aspects of this tour is that Big Boy never operated in most of the states it’s now visiting. The 4-8-8-4 class was built for UP’s western mountain grades, and the locomotives spent their entire revenue careers between Ogden, Utah and Cheyenne, Wyoming. No. 4014 has never turned a wheel in Indiana, Ohio, New York, or Pennsylvania under its own steam.
That fact makes every mile of the eastern leg new territory in a literal sense. The locomotive is crossing the Mississippi River and rolling through the Ohio Valley for the first time since it was delivered as a brand-new engine 85 years ago. For communities along the route, many of which have deep but often overlooked railroad heritage, the arrival of a 1.2-million-pound articulated steam locomotive is an event without modern precedent.
Major display stops include Omaha (May 30), West Chicago (June 3), Buffalo (June 10), Scranton (June 15–16), Philadelphia (July 4–5), and a ticketed appearance at the legendary Horseshoe Curve near Altoona on July 11. A sold-out passenger excursion through the Pocono Mountains on the Reading & Northern on June 14 was the only public ride opportunity on the entire tour.
The Scranton stop deserves special attention. Big Boy No. 4014 will share space with Steamtown National Historic Site’s own Big Boy No. 4012 from June 15 through June 30, which will be the only chance to see two of the eight surviving Big Boys together. While 4014 undergoes servicing and a boiler wash at Steamtown, visitors can view both locomotives side by side, a reunion that hasn’t happened since these machines were in active service. Timed-entry reservations through Recreation.gov are required.
It’s impossible to discuss the UP-NS collaboration without acknowledging the context. Union Pacific and Norfolk Southern announced an $85 billion merger proposal in July 2025 that would create America’s first true coast-to-coast Class I railroad. The application is under federal review, with a revised filing due in spring 2026 and a Surface Transportation Board decision expected sometime in 2027.
The Big Boy tour doesn’t carry any official merger branding, and both railroads have framed it strictly as an America250 celebration. In practice, though, it’s still significant that a UP locomotive is running seamlessly on NS infrastructure, accompanied by jointly curated heritage equipment, and stopping in communities across both networks. The tour is, at minimum, a demonstration that these two systems can cooperate operationally and a public goodwill campaign that puts friendly faces on a consolidation that has drawn scrutiny from shippers, regulators, and competing railroads.
Whether that subtext is intentional strategy or a happy coincidence depends on your level of cynicism. If the merger goes through, the tracks Big Boy is currently steaming over could one day carry the combined railroad’s freight. The 2026 tour may turn out to be a preview of a unified network, or it could be the only time a UP locomotive ever operates on NS rails. T
The eastern leg wraps up July 29 back in Cheyenne, completing a tour that will have crossed 14 states in total. Between the Norfolk Southern commemorative locomotives, the FDR-era Pullman car, the Steamtown reunion, the Horseshoe Curve appearance, and the sheer spectacle of a wartime-era steam giant on unfamiliar eastern rails, this is one of the most ambitious heritage railroad events in living memory.
The collaboration between UP and NS has produced an awesome rolling history lesson in American industry, infrastructure, and the railroads that built both.
Gear Up for the Tour
Whether you're chasing Big Boy across the eastern leg or following along from home, shop.trains.com has merchandise to mark the occasion.
Big Boy No. 4014 Merchandise Collection — Browse the full lineup of Big Boy 4014 gear, including pins, apparel, and collectibles designed to celebrate this once-in-a-generation tour.
Big Boy – Back In Steam — This special collector’s edition from Trains magazine covers the full history of the 4-8-8-4 class, the 2014–2019 restoration, and the 2019 inaugural runs across Sherman Hill and Wasatch Grade. Includes a foldout cutaway drawing and a guide to all surviving Big Boys.
Big Steam is Back — A 100-page special edition featuring 11 restored steam locomotives and their journeys back to operation, including Norfolk & Western Class J No. 611, Southern Pacific 4449, and Big Boy 4014. Norfolk Southern Heritage Units Canvas — A fade-resistant canvas print capturing NS's colorful heritage locomotive fleet against the railroad's traditional black scheme. A great complement to this summer's America's 250 series. https://shop.trains.com/products/norfolk-southern-heritage-units-canvas
Norfolk Southern Family Tree Tee — This Trains magazine exclusive traces the full NS lineage back through the 1982 Norfolk & Western and Southern Railway merger and beyond — perfect context for understanding the eastern railroad heritage Big Boy is now traveling through.
Norfolk Southern Railroad Map and Family Tree Poster — A detailed poster mapping the NS system and its predecessor railroads, ideal for tracking Big Boy's eastern route.
Norfolk Southern Railway Merchandise Collection — Browse the full lineup of NS-branded apparel, accessories, and gifts.
Looking for Big Boy merchandise to commemorate the 2026 Coast-to-Coast Tour? Browse the full collection at shop.trains.com