Dunderdalen
| Dunderdalen | |
|---|---|
Dunderdalen, Wedel Jarlsberg Land, southwestern Spitsbergen. Seen from east towards west.]] | |
| Length | 16 km (9.9 mi) |
| Naming | |
| English translation | Thunder valley |
| Geography | |
| Country | Norway |
Dunderdalen is a valley on Wedel Jarlsberg Land within the Sør-Spitsbergen National Park, on the southwestern part of Spitsbergen, Svalbard. The valley has a length of about 16 km, and opens into Dunderbukta.