Northern Pacific Engineering Drawing: Detail of Abutment, Bridge 19 (15) - Jefferson River, Sappington, Montana, Line Segment 326, Milepost 19.9. Sheet 441 - 45, undated.

Northern Pacific Engineering Drawing: General Plan/Detail Piers, Bridge 19 (15) - Jefferson River, Sappington, Montana, Line Segment 326, Milepost 19.9. Sheet 441 - 45, 1904. Note: Steel spans

Plat Map of Northern Pacific facilities at Sappington, Montana, October 31, 1932, Drawing Number 86919, Sheet Number 2, Line Segment 326, showing the Logan-Butte line.

Plat Map of Northern Pacific facilities at Sappington, Montana, October 31, 1932, Drawing Number 86919, Sheet Number 3, Line Segment 326, showing the Logan-Butte line.

Plat Map of Northern Pacific facilities at Sappington, Montana, October 31, 1932, Drawing Number 86919, Sheet Number 1, Line Segment 326, showing the Logan-Butte line.