Killary Harbour is Ireland's only "fjord". It is disputed that it was actually formed by glaciers. It forms the border between parts of counties Galway and Mayo. It's 16 kilometers long and in the center it's over 45 meters deep. Image File history File links Download high resolution version (1024x702, 575 KB)Satellite image of Killary Harbour, Ireland. ... Image File history File links Download high resolution version (1024x702, 575 KB)Satellite image of Killary Harbour, Ireland. ... Sognefjorden, Norway A fjord (or fiord) is a narrow inlet of the sea between cliffs or steep slopes, which results from marine inundation of a glaciated valley. ... WGS-84 (GPS) Coordinates: 53. ... Places called Mayo include:hi County Mayo, a county in Ireland Mayo, a settlement in County Mayo, Ireland Mayo, a place in the U.S. state of Florida Mayo, a town in Trinidad and Tobago The Division of Mayo, an Australian Electoral Division in South Australia Mayo, a town in...