drumena stone fort. castlewellan. county down. northern ireland

aerial age ancient archaeological architecture building burial caher cairn cashel castlewellan cathair celt celtic chamber christian countryside county cult culture ditch down drone drumena dublin dun earthen enclosing europe exterior fort geometric heritage hill hills hilltop historic historical ireland irish iron island kilcoo landscape lough masonry monument mound mounds mountain nature northern old outdoors oval pilgrimage prehistoric rath reavy reservoir ring rolling round ruin ruins settlement sight slabs social spiruality stone stonefort stones tourism travel valley view wall walls water