Great Northern Engineering Drawing: Express Building at Great Falls, Montana, prepared in 1958. Burlington Northern File Number 8065-21, Reference Number 10109, Sheet 021.

Great Northern Engineering Drawing: Express Building at Great Falls, Montana, prepared in 1958. Burlington Northern File Number 8065-21, Reference Number 10109, Sheet 021.

Great Northern Engineering Drawing: Express Building at Great Falls, Montana, prepared in 1959. Burlington Northern File Number , Reference Number 10104.

Great Northern Engineering Drawing: Express Building at Great Falls, Montana, prepared in 1960. Burlington Northern File Number 8065-17, Reference Number 10107, Sheet 017.

Great Northern Engineering Drawing: Express Building at Great Falls, Montana, prepared in 1960. Burlington Northern File Number 8065-20, Reference Number 10107, Sheet 020.

Great Northern Engineering Drawing: Express Building at Great Falls, Montana, prepared in 1961. Burlington Northern File Number 8065-12, Reference Number 10109, Sheet 012.

Great Northern Engineering Drawing: Express Building at Great Falls, Montana, prepared in 1962. Burlington Northern File Number 8065-13, Reference Number 10111, Sheet 013.

Great Northern Engineering Drawing: Express Building Heating at Great Falls, Montana, prepared in 1968. Burlington Northern File Number B-589, Reference Number 10101.

Great Northern Engineering Drawing: Express Building at Great Falls, Montana, prepared in 1971. Burlington Northern File Number 8065-38, Reference Number 10104, Sheet 038.

Great Northern Engineering Drawing: Express Building at Great Falls, Montana, prepared in 1971. Burlington Northern File Number 8065-39, Reference Number 10104, Sheet 039.