The Brukkaros massif is visible long before you arrive. At some 1,590m high it rises by about 600m over the plateau which characterises the surrounding landscape. For decades geologists have disagreed about the origins of the 3 km of Brukkaros.
Even though this mountain looks like an extinct volcano, it now seems that it did not originate from volcanic activity. Instead, it is thought that the crater-like basin is the result of a subterranean gas-explosion, which caused an enormous cavity to implode. You can climb Brukkaros from the southern rim of the crater. From there a path leads down into the basin and to an old research station.