 According to a news item in the July 6, 1951 edition of the "Hollywood Reporter", footage of a fire in the Gila National Forest, New Mexico, was filmed by a special camera crew for use in the film.The aircraft in the smoke jumping scenes (NC8419) was a Ford Trimotor 5-AT-C used by the United States Forest Service in its operations.The aircraft was used by the USFS from June 5, 1951 to August 4, 1959 when it crashed and burned while landing at the Moose Creek spike camp airstrip in the Selway-Bitterroot Wilderness in Idaho, 50 miles west of Missoula, killing two smokejumpers and a Nez Perce National Forest supervisor.