Iron Triangle (Vietnam) Iron Triangle (Vietnam) The Iron Triangle (Vietnamese:"Tam Giác Sắt") was a area in the Bình Dương Province of Vietnam, so named due to it being a stronghold of Viet Minh activity during the war. The region was under control of the Viet Minh throughout the French war in Vietnam and continued to be so throughout the phase of American involvement in the Vietnam War, despite concerted efforts on the part of US and South Vietnamese forces to destabilize the region as a power base for their enemy, the communist North Vietnamese–sponsored and–directed South Vietnamese insurgent movement, the National Liberation Front
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