Northern Plains Natural Gas Company, Omaha, NE No description specified. 1-4 (4 Records) Documents Archeology of the Northern Border Pipeline Volumes 1-5 (1982) Archeology of the Northern Border Pipeline, Beaver Creek, (Volumes 1-2) (1983) Archeology of the Northern Border Pipeline, Iowa, (Volumes 1-3) (1983) Archeology of the Northern Pipeline, Minnesota, (Volumes 1-3) (1983)