1) Black mountain in Wales 2) Hillfort in Monmouthshire
Found on
https://www.crosswordclues.com/clue/gaer
[Black Mountains] Gaer is the name of a hill in the Black Mountains of the Brecon Beacons National Park in Monmouthshire, south Wales. It lies at the southern end of the long ridge between the valley of the Grwyne Fawr and the Vale of Ewyas one mile to the north of Bryn Arw and 3 miles northeast of Sugarloaf. Its summit at 427m above sea le...
Found on
http://en.wikipedia.org/wiki/Gaer_(Black_Mountains)
No exact match found.
