1) Mountain in Iceland 2) Volcanic plug of Europe
Found on
https://www.crosswordclues.com/clue/borgarvirki
Borgarvirki lies between Vesturhóp and Víðidalur in the north of Iceland, and at 177m above sea level it dominates the surrounding region. Made out of basalt strata, it has been used as a fortress for centuries. Borgarvirki is a natural phenomenon, altered by humans in earlier centuries. In 1949, the main entrance was renovated by workers. Borg...
Found on
http://en.wikipedia.org/wiki/Borgarvirki
No exact match found.
