Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1933. Burlington Northern File Number 4967-12, Reference Number 10109, Sheet 012.

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 4967-2, Reference Number 10109, Sheet 002.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1933. Burlington Northern File Number 4967-3, Reference Number 10109, Sheet 003.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1933. Burlington Northern File Number 4967-6, Reference Number 10109, Sheet 006.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1933. Burlington Northern File Number 4967-9, Reference Number 10109, Sheet 009.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1933. Burlington Northern File Number 4967-13, Reference Number 10109, Sheet 013.

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.

Northern Pacific Engineering Drawing: Roundhouse, Frame 125 Foot at Yakima, Washington, prepared in 1933. Burlington Northern File Number 4967-11, Reference Number 10109, Sheet 011.

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.