DescriptionRanger-Naturalist Lystrup giving an illustrated program at the Old Faithful amphitheater. A large screen is strung up behind the ranger, with an image projected on it. A large group of visitors are seated facing the ranger and screen. A wooden building is in the background. TypeImageGenrephotographsDateCirca 1930SubjectYellowstone National ParkAmphitheatersContributing InstitutionYellowstone National Park Heritage and Research CenterGeographic CoverageYellowstone National ParkTime Period Represented1930Digital CollectionYellowstone National Park PhotographsDigital Formatimage/jpgPhysical CollectionYellowstone National Park Museum CollectionDigitization SpecificationScanned at 300 dpiDate Digitized2017Photo NumberYELL 15713Contact UsFor more information contact Yellowstone National Park Heritage and Research Center: yell_heritage_center@nps.gov / (307) 344-2264.