Railroad Archives Online
- CollectionD0018 - Robert E. Kelly Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1012 - Cartographic materials
- Subseries Level 2W2018-71-003 - Track profile
- 29 more...
- ItemW2018-71-214 - Great Northern Railway Track Profile Mileposts 1744-1761, Gold Bar, Washington, 1945
- ItemW2018-71-215 - Great Northern Railway Track Profile Mileposts 1410-1431, Thama, Idaho, 1961
- ItemW2018-71-216 - Great Northern Railway Track Profile Mileposts 1907-1735, Skykomish, Washington
- ItemW2018-71-251 - Great Northern Railway Rocky Reach Dam Project, Entiat, Washington, 1958
- ItemW2018-71-253 - Great Northern Railway Track Profile Mileposts 3-21, Zena, Washington
- ItemW2018-71-254 - Great Northern Railway Track Profile Milepost: 145-164, Similkameen, British Columbia, 1917
- ItemW2018-71-255 - Great Northern Railway Track Profile Mileposts 161-179, Ashnola, British Columbia
- ItemW2018-71-256 - Great Northern Railway Track Profile Mileposts 2-22, Entiat, Washington, 1949
- ItemW2018-71-257 - Great Northern Railway Track Profile Mileposts 125-136, Cordell, Washington
- 7 more...