Plat Map of Northern Pacific facilities at Pomona, Washington, undated, Sheet Number 4, Line Segment 48, showing the Pasco-Ellensburg line.

Plat Map of Northern Pacific facilities at Porter, Washington, January 19, 1905, Sheet Number 1, Line Segment 402, showing the Saint Clair-Hoquiam line.

Plat Map of Northern Pacific facilities at Porter, Washington, January 19, 1905, Sheet Number 2, Line Segment 402, showing the Saint Clair-Hoquiam line.

Plat Map of Northern Pacific facilities at Portland, Oregon, May 1, 1928, Sheet Number 1, Line Segment 647, showing the Hoyt Street and Lake yards, Union Station, Wilson Street-Glisan Street.

Plat Map of Northern Pacific facilities at Portland, Oregon, January 1, 1928, Sheet Number 1, Line Segment 647, showing the Portland yard, industry and dock spurs.

Plat Map of Northern Pacific facilities at Portland, Oregon, January 1, 1928, Sheet Number 2, Line Segment 647, showing the Portland yard, industry and dock spurs.

Plat Map of Northern Pacific facilities at Portland, Oregon, September 10, 1964, Sheet Number 1, Line Segment 647, showing the Guild's Lake Yard, roundhouse.

Plat Map of Northern Pacific facilities at Portland, Oregon, September 10, 1964, Sheet Number 2, Line Segment 647, showing the Guild's Lake Yard, roundhouse.

Plat Map of Northern Pacific facilities at Portland, Oregon, September 10, 1964, Sheet Number 3, Line Segment 647, showing the Guild's Lake Yard, industry spurs.

Plat Map of Northern Pacific facilities at Portland, Oregon, September 10, 1964, Sheet Number 4, Line Segment 647, showing the Guild's Lake Yard, industry spurs.