Iron Brigade and was previously called the "Black Hat" Brigade. The 3rd Brigade Combat Team, 1st Infantry Division was known as the Iron Brigade from its formation in 1917 through World War I, World War II and Vietnam, until some time in the early 2000s when, for reasons that are still unclear, the name was changed to Duke Brigade. The unit crest was an Iron Cross in a triangle, it appears that that was also changed. The 3rd Brigade of the 4th Infantry Division is also known as the Iron Brigade. Its unit crest is similar to the medals issued to veterans
The Mine with the Iron Door (1924 film) Holman. In 1936 it was remade as a sound film "The Mine with the Iron Door". The film was shot on location in the Tucson Arizona Valley, Oracle, Arizona, and Mt. Lemmon. While shooting the film the cast and crew stayed at the Triangle L Ranch and the Wilson Ranch (Rancho Linda Vista) outside of Oracle, Arizona off Historic US Route 80. The Mine with the Iron Door (1924 film) The Mine with the Iron Door is a 1924 American silent epic Western melodrama directed by Sam Wood and produced by Sol Lesser. The film is based on the novel