| GMD | Map |
| Language | English |
| Classification | R4242.C62 S1 1948 |
| Publisher | Washington, D.C., U.S. Government Printing Office, 1948 |
| Subject | Water resources developmentWater resources development -- Columbia River Valley -- MapsUnited States -- Columbia River Valley |
| Description | 1 map : col. ; 55 x 81 cm. |