Pictograph Cave, Billings, MT ID: 4965 | This file appears in: Pictograph Cave View of cave entrance with people in foreground | Creator: Vernon Hennessay, photographer. | Date: Nov 1970 | Source: National Historic Landmark nomination for Pictograph Cave. | Rights: Public domain Download Original File CreatorVernon Hennessay, photographer.SourceNational Historic Landmark nomination for Pictograph Cave. DateNov 1970RightsPublic domain "Pictograph Cave, Billings, MT" appears in: Pictograph Cave