Lough Mask is a limestone lough in County Mayo, Ireland, north of Lough Corrib. It is the middle of the three lakes which empty into the Corrib River, through Galway, into Galway Bay. Lough Carra flows into Lough Mask, which feeds into Lough Corrib through an underground stream which becomes the River Cong. Lough Mask is the sixth largest lake, by area, in Ireland.

The eastern half of Lough Mask is shallow and contains many islands. The other half (Upper Lough Mask) is much deeper, sinking to a long trench with depths in excess of 50 metres. Petersburg Outdoor Education Centre is situated on the shore of the lough, close to Bly Island. The centre uses the lake for numerous water sports including kayaking, canoeing and sailing.

The chart used is a classic black and white from the Admiralty archives. It is set on a black background and is finished with a charcoal mount and black frame. Surround lighting enhances the finished piece.


  • Location: Lough Mask, Co. Mayo, Ireland
  • Chart: Admiralty, UKHO, classic B&W
  • Surround lighting: Yes
  • Frame: Black, 600*500mm