Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot, Changes Account, Abandonment of Heating Plant at Yakima, Washington, prepared in 1962. Burlington Northern File Number 4976-1, Reference Number 10108, Sheet 001.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1962. Burlington Northern File Number 4976-2, Reference Number 10108, Sheet 002.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1962. Burlington Northern File Number 4976-3, Reference Number 10103, Sheet 003.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1962. Burlington Northern File Number 4976-4, Reference Number 10103, Sheet 004.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1952. Burlington Northern File Number 4967, Reference Number 10108, Sheet 001.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1941. Burlington Northern File Number 4967-16, Reference Number 10110, Sheet 016.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1933. Burlington Northern File Number 4967-14, Reference Number 10109, Sheet 014.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1933. Burlington Northern File Number 4967-8, Reference Number 10109, Sheet 008.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1933. Burlington Northern File Number 4967-1, Reference Number 10109, Sheet 001.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1933. Burlington Northern File Number 4967-4, Reference Number 10109, Sheet 004.