THE WORLD'S LARGEST STEAM TRACTION ENGINE!
Nine were built from 1905-1909. None survived. Until Kory Anderson brought it back to life!
DISCOVER THE STORYTHE WORLD'S LARGEST STEAM TRACTION ENGINE
Nine were built from 1905-1909. None survived. Until now.
A Dream 12 Years in the Making
Between 1904 and 1907, the J.I. Case company built nine experimental 150 HP Road Locomotives — the most powerful steam traction engines ever made. None survived. For over a century, the 150 HP Case existed only in old factory photographs.
Then Kory Anderson spent 12 years bringing one back. From foundry patterns to hot-riveted wheels, every component was recreated from scratch using techniques that had nearly vanished from modern practice.
The Machine
A Phenomenon
The 150 HP Case has captured the imagination of millions — from threshing show crowds to YouTube audiences around the world.
From threshing show crowds to YouTube audiences — the 150 HP Case has captured the world.
Watch the Legend in Action
Over 200 million views and counting. See why the world can't look away.

The 150 HP Case Road Locomotive — Full Pull
Watch the world's largest operational steam traction engine pull 24 bottoms across the South Dakota prairie. The video that started it all.
Follow along as the legend continues to grow.
Experience the Legend
The 150 HP Case makes a limited number of public appearances each year. Don't miss your chance to see history in motion.
Kory Anderson accepts a limited number of private bookings each year for fairs, threshing shows, and special events.
Dream2Steam: The 150 HP Case Story
The complete firsthand account of the 12-year journey to recreate the world's largest steam traction engine — from a childhood dream to a Guinness World Record.
This book is not available online. Pick up your copy at the James Valley Threshing Show or other events where Kory and the 150 Case appear.
Find Upcoming EventsBilly the Lost Boiler
A children's book inspired by the world of historic steam machinery, introducing young readers to America's mechanical heritage through storytelling and adventure.
Perfect for young historians, families, and anyone who wants to share the wonder of America's steam age with the next generation.
The Legacy Continues
THE NEXT GENERATION IS WATCHING.
Preserving America's past. Inspiring those who will carry it forward.
When Kory Anderson was just nine years old, he became fascinated by a legendary steam engine that had disappeared from history. What began as a childhood dream eventually became a 12-year journey to bring the 150 HP Case Road Locomotive back to life.
Today, that same machine is capturing the imaginations of children across America.
When young visitors stand beside its towering wheels, hear its whistle, and watch it come to life, they're experiencing more than a steam engine. They're discovering a piece of American history that might otherwise have been forgotten.
These machines tell the stories of the generations who built, operated, and depended on them. By keeping them running, we're keeping those stories alive.
Somewhere in that crowd might be another nine-year-old whose curiosity will become a lifelong passion for preserving America's past.
“Because history isn't just something we remember. It's something we pass on.”
Ali Anderson — Barnes & Noble Book Signing
Billy the Lost Boiler
Big stories for little historians.
Inspired by the world of historic steam machinery, Billy the Lost Boiler introduces young readers to the wonder of America's mechanical heritage through storytelling, imagination, and adventure. It's one more way to spark curiosity about the past and encourage the next generation to discover the stories behind the machines that helped shape our country.
Find on AmazonLindley Creek on the 150 Case
When Lindley Creek climbed aboard the world's largest steam traction engine and played, something unforgettable happened — 120 years of American history met the sound of the American heartland.
Live on the 150 Case — Andover, SD
Live Performance
Kory & the Band
The Full Crew
"Two American originals — one stage, 75,000 lbs of iron."
Lindley Creek × The 150 Case
Everywhere She Goes, She Stops the Show
From packed grandstands to open fields, the 150 Case draws crowds that have never seen anything like her — and never forget it.
Steam-O-Rama · Ash Grove, MO
Lake Itasca · MN
Bird City, KS
Fans on the Engine
Making Her Entrance
Bird City, KS
Night at Steam-O-Rama
Old World Meets New
Kory on the Boiler
Love from Fans
Everywhere the 150 Case goes, it leaves a mark. Fans from across the country share their moments with the legend.
The Crowd
Night Run
On Stage
On the Field
Prony Brake Test
Fans on the Engine
Award Ceremony
Kory at the Mural
Book Signing
Up Close with the Legend
Fan Moment
End of Day Wash-Down
Reserved for the Case 150
Steam Power on the Field
Kory Speaks
On the Field
The Crew
Next Generation Fan
Trophy Moment
Signing at the Booth
Signing a Print
Reserved at Sunset
On the Field
Live at Steam-O-Rama
Making Her Entrance
Standing Room Only
Crew at Work
Into the Steam
Full Power
Old World Meets New
Kory Explains the Machine
Governor & Oiler Detail
Book Signing
Kory & Ali at Bird City
Full Steam Ahead
Telling the Story
A Captivated Crowd
Pavilion Crowd
Merch on the Road
Kory on the Boiler
As Featured In
The World's Largest Operational Steam Traction Engine
Certified by Guinness World Records in 2022, the 150 HP Case Road Locomotive is officially the largest operational steam traction engine on earth.