Plat Map of Northern Pacific facilities at Grantsdale, Montana, June 11, 1926, Sheet Number 1, Line Segment 333, showing the Missoula-Darby line.

Plat Map of Northern Pacific facilities at Gravelles, Washington, May 22, 1917, Sheet Number 2, Line Segment 380, showing the Davenport-Eleanor line.

Plat Map of Northern Pacific facilities at Gravelles, Washington, May 22, 1917, Sheet Number 1, Line Segment 380, showing the Davenport-Eleanor line.

Plat Map of Northern Pacific facilities at Greycliff, Montana, April 18, 1949, Sheet Number 1, Line Segment 41, showing the Billings-Helena line.

Plat Map of Northern Pacific facilities at Greycliff, Montana, April 18, 1949, Sheet Number 4, Line Segment 41, showing the Billings-Helena line.

Plat Map of Northern Pacific facilities at Greycliff, Montana, April 18, 1949, Sheet Number 6, Line Segment 41, showing the Billings-Helena line.

Plat Map of Northern Pacific facilities at Greycliff, Montana, April 18, 1949, Sheet Number 2, Line Segment 41, showing the Billings-Helena line.

Plat Map of Northern Pacific facilities at Greycliff, Montana, April 18, 1949, Sheet Number 3, Line Segment 41, showing the Billings-Helena line.

Plat Map of Northern Pacific facilities at Greycliff, Montana, April 18, 1949, Sheet Number 5, Line Segment 41, showing the Billings-Helena line.

Plat Map of Northern Pacific facilities at Hackney, Montana, February 1, 1914, Sheet Number 1, Line Segment 327, showing the Butte-Garrison line.