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
- 148 more...
- ItemGNValuationMap0149 - Great Northern Plat Map, Washington. Milepost 25-29, undated
- ItemGNValuationMap0150 - Great Northern Plat Map, Alstown, Washington. Milepost 30-34, undated
- ItemGNValuationMap0151 - Great Northern Plat Map, Alstown, Washington. Milepost 31, undated
- ItemGNValuationMap0152 - Great Northern Plat Map, Douglas, Washington. Milepost 35-40, undated
- ItemGNValuationMap0153 - Great Northern Plat Map, Douglas, Washington. Milepost 36, undated
- ItemGNValuationMap0154 - Great Northern Plat Map, Suplee, Washington. Milepost 43, undated
- ItemGNValuationMap0155 - Great Northern Plat Map, Suplee, Washington. Milepost 41-45, undated
- ItemGNValuationMap0156 - Great Northern Plat Map, Withrow, Washington. Milepost 49, undated
- ItemGNValuationMap0157 - Great Northern Plat Map, Withrow, Washington. Milepost 46-49, undated
- 92 more...