Held in Mackinaw City, Michigan each summer. The friendly competition attracts ironworkers from across the U.S. and Canada. The public is welcome.

International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers.

Ironworkers Local 25 is a part of the International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers. Detroit, Michigan

Represents almost 3000 men and women engaged in the ironworking industry in the greater San Francisco Bay Area and North Coast.

New York Union Representing Iron and related material fabricators in the New York Metropolitan area.

Represents shop floor workers at Fought and Company in Portland, Oregon.