THE LEGEND
LIVES.
The World's Largest Steam Traction Engine
DISCOVER THE STORYTHE WORLD'S LARGEST STEAM TRACTION ENGINE
Nine were built. 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.
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.
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 Events
Billy 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 AmazonThe 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.