Great Northern Diesel Locomotives 363C, Class F7 and 2026, Class GP20 in Havre, Montana, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotives 363C, Class F7 and 2026, Class GP20 in Havre, Montana, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotives 363C, Class F7, 2026 and 2020, Class GP20 in Havre, Montana, undated. Photograph by Wade Stevenson.

Great Northern Engineering Drawing: General Plan, Bridge 1, west of Havre, Montana, Line Segment 036, Milepost 965.3. Sheet 281 - 3092 - 2, 1917. Note: Concretrestle - AFE 5413

Great Northern Engineering Drawing: Safety Walk, Bridge 1, west of Havre, Montana, Line Segment 036, Milepost 965.3. Sheet 281 - 3092 - 3, undated.

Great Northern Engineering Drawing: Boiler Room Addition at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755, Reference Number 10108, Sheet M-1.

Great Northern Engineering Drawing: Boiler Room Addition at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755, Reference Number 10108, Sheet S19.

Great Northern Engineering Drawing: Boiler Room Addition Angles Mk23A1 at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-9795, Reference Number 10108, Sheet S23.

Great Northern Engineering Drawing: Boiler Room Addition Header Angles Mk21A at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-9795, Reference Number 10108, Sheet 1S21.

Great Northern Engineering Drawing: Boiler Room Addition Edge Angle Mk17N at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-9795, Reference Number 10108, Sheet 1S17.