Plat Map of Northern Pacific facilities at Drummond, Montana, February 9, 1910, Sheet Number 3, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Donlan, Montana, March 13, 1909, Sheet Number 3, Line Segment 43, showing the De Smet-Paradise line.

Plat Map of Northern Pacific facilities at Donlan, Montana, March 13, 1909, Sheet Number 1, Line Segment 43, showing the De Smet-Paradise line.

Plat Map of Northern Pacific facilities at Donlan, Montana, March 13, 1909, Sheet Number 2, Line Segment 43, showing the De Smet-Paradise line.

Plat Map of Northern Pacific facilities at Donald, Washington, undated, Sheet Number 1, Line Segment 448, showing the Gibbon-Parker line.

Plat Map of Northern Pacific facilities at Donald, Washington, undated, Sheet Number 2, Line Segment 448, showing the Gibbon-Parker line.

Plat Map of Northern Pacific facilities at Dixon, Montana, September 20, 1932, Sheet Number 2, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Dixon, Montana, September 20, 1932, Sheet Number 1, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Dixon, Montana, September 20, 1932, Sheet Number 3, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Dixie, Washington, November 7, 1960, Sheet Number 1, Line Segment 450, showing the Ainsworth Junction-Daytonÿline.