National Threshers Association

The National Threshers Association (NTA) is a non-profit group of enthusiasts who are interested in steam-powered traction engines - also known as "steam tractors", "steam traction engines" or simply "steam engines" - as well as related equipment. The group's premier event is its annual reunion/show, which features live exhibits of antique steam engines and gas-powered machinery from throughout the United States and Canada. Dating back to 1944, the annual show is recognized as the oldest event of its type in the United States.

National Threshers Association

The National Threshers Association (NTA) is a non-profit group of enthusiasts who are interested in steam-powered traction engines - also known as "steam tractors", "steam traction engines" or simply "steam engines" - as well as related equipment. The group's premier event is its annual reunion/show, which features live exhibits of antique steam engines and gas-powered machinery from throughout the United States and Canada. Dating back to 1944, the annual show is recognized as the oldest event of its type in the United States.