Helena Railroad Depot Historic District ID: 1601 | This file appears in: Helena Railroad Depot Historic District Helena Railroad Depot Historic District. Front view of the buildings located at 1507 and 1509 Railroad Avenue, facing south to southeast towards North Harris Street in front of the Northern Pacific Railroad Depot (Union Depot). | Creator: Photographer unidentified | Date: May 2003 | Source: Montana State Historic Preservation Office | Rights: Public Domain Download Original File CreatorPhotographer unidentifiedSourceMontana State Historic Preservation OfficeDateMay 2003RightsPublic DomainFormatJPEG "Helena Railroad Depot Historic District" appears in: Helena Railroad Depot Historic District