Geologisk kart 57: Geologisk Generalkart; K15, Dunderlandsdalen
| Map series: | Geologiske kart |
|---|---|
| Region: | Nordland |
| Year: | 1915 |
| Scale: | 1:100000 |
| Techniques: | Heliogravyre |
| Cartographers: | O. Tolstad, John Oxaal, Marstrander, Michelsen |
| Publishers: | Norges geologiske undersøkelse |