Railroad Archives Online
- CollectionD0324 - Washington State Archives Railroad Valuation Map Deposit
- Series10 - Great Northern Railway Company (U.S.)
- Subseries Level 112 - Cartographic materials
- Subseries Level 22 - Plats
- ItemGNValuationMap0001 - Great Northern Plat Map, Newport, Washington. Milepost 1431-1433, undated
- ItemGNValuationMap0002 - Great Northern Plat Map, Newport, Washington. Milepost 1431-1432, 1934
- ItemGNValuationMap0003 - Great Northern Plat Map, Penrith, Washington. Milepost 1434-1437, undated
- ItemGNValuationMap0004 - Great Northern Plat Map, Scotia, Washington. Milepost 1438-1441, undated
- ItemGNValuationMap0005 - Great Northern Plat Map, Camden, Washington. Milepost 1442-1445, undated
- ItemGNValuationMap0006 - Great Northern Plat Map, Camden, Washington. Milepost 1446-1447, undated
- ItemGNValuationMap0007 - Great Northern Plat Map, Elk, Washington. Milepost 1447-1451, undated
- 242 more...