Great Northern Engineering Drawing: Power House at Havre, Montana, undated. Burlington Northern File Number SK-3, Reference Number 101.

Great Northern Engineering Drawing: Power House at Havre, Montana, prepared in 1969. Burlington Northern File Number A-96, Reference Number 10111.

Great Northern Engineering Drawing: Power House at Havre, Montana, prepared in 1963. Burlington Northern File Number SK-2158, Reference Number 10105.

Great Northern Engineering Drawing: Power House at Havre, Montana, prepared in 1961. Burlington Northern File Number A-45, Reference Number 10101.

Great Northern Engineering Drawing: Power House at Havre, Montana, prepared in 1960. Burlington Northern File Number L-6856, Reference Number 10112.

Great Northern Engineering Drawing: Power House at Havre, Montana, prepared in 1952. Burlington Northern File Number SK-1, Reference Number 10104.

Great Northern Engineering Drawing: Power House at Havre, Montana, prepared in 1952. Burlington Northern File Number 8030-27, Reference Number 10111, Sheet 027.

Great Northern Engineering Drawing: Power House at Havre, Montana, prepared in 1946. Burlington Northern File Number A-257, Reference Number 10101.

Great Northern Engineering Drawing: Power House at Havre, Montana, prepared in 1946. Burlington Northern File Number SK-2, Reference Number 10108.

Great Northern Engineering Drawing: Power House at Havre, Montana, prepared in 1945. Burlington Northern File Number 8030-24, Reference Number 10109, Sheet 024.