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North Mayo Area   S: Bangor Erris Hills Subarea
Place count in area: 19, OSI/LPS Maps: 22, 23, EW-WNN 
Highest place:
Maumakeogh, 379m
Maximum height for area: 379 metres,     Maximum prominence for area: 294 metres,

Note: this list of places includes island features such as summits, but not islands as such.
Rating graphic.
Knocklettercuss Hill Leitir Cois A name in Irish (Ir. Leitir Cois [amended from OSNB], 'wet hillside of the
Mayo County in Connacht Province, in Binnion List, Banded, graded and X-bedded quartzites. Bedrock

Height: 370m OS 1:50k Mapsheet: 23 Grid Reference: F87595 19817
Place visited by 34 members. Recently by: jlk, gerrym, ryanguinness10, annem, Wilderness, Lauranna, eamonoc, Oileanach, Fergalh, hivisibility, Ulsterpooka, tsheehy, Krumel, rowanofravara, scapania
I have visited this place: NO (You need to be a logged-in member to change this.)

Longitude: -9.719648, Latitude: 54.115169 , Easting: 87595, Northing: 319817 Prominence: 212m,  Isolation: 2.4km,   Has trig pillar
ITM: 487569 819823,   GPS IDs, 6 char: Knc370, 10 char: Knckltrcs
Bedrock type: Banded, graded and X-bedded quartzites., (Bangor/Corslieve Formation)

The Ordnance Survey Name Book gives Leitir Cos as the derivation of this name, which it interprets as 'spewy hillside of the foot'. Leitir Cos appears to be an error for Leitir Cois.   Knocklettercuss is the second highest hill in the North Mayo area and the 1019th highest in Ireland.

COMMENTS for Knocklettercuss (Leitir Cois) 1 of 1  
Follow this place's comments Picture about mountain Knocklettercuss (<i>Leitir Cois</i>) in area North Mayo, Ireland
Picture: View south from Knocklettercuss
New Comment: A grand viewpoint into the Wild Nephin National Park
by gerrym  13 Mar 2023
Bangor Erris gives easy access to Knocklettercuss and there is parking for hundreds at the GAA pitch which it literally a few steps from the start of the Bangor Trail. Thankfully its wetness is only followed for a short distance before climbing the slopes.

Even at this modest height views north are stunning, past the working quarry face on Carrafull to the North Mayo hills and cliffs and the waters of Broadhaven Bay. To the west a vast peatland carries the eye to the Atlantic and the iconic mountain shapes on Achill. As the 3 km summit ridge is reached the towering wind turbines to the east dwarf conifer plantations as they produce electricity for hundreds of thousands of households.

The walk to the summit is fairly relaxed with the landscape east and west constantly drawing attention. This hill keeps the views south as an enticement and when they finally appear they are worth the wait. The big mountains of the Nephin Begs rise splendidly out of further vast tracts of bog land with the long line of Slieve Carr dominant. Further south the jagged line from Corranabinnia to Glennamong creates a grand barrier. A cairn is passed on the way to the summit trig pillar. On a good day these views would be more than worth the effort. Today a brisk and cold easterly wind told me to keep moving.

As others have said an out and back return can be made to maintain the height or it would be handy enough to drop down west to pick up the Bangor Trail. I continued south with an approach to Slieve Carr as a focus. This crossed some of that tract of bog and it wasn't too bad after a relatively dry spell, though there was one 'floaty' bit that had me skirting around to be sure. On returning I did use the Bangor Trail which skirts the western flank of Letterknockcuss and it is very very wet going so be prepared for your boots to disappear at least once. Linkback:
Your Score: Very useful <<  >>Average
Set out to reach the summit of Knocklettercuss us .. by Big-Foot   (Show all for Knocklettercuss (Leitir Cois))
Slieve Doom .. by Geansai   (Show all for Knocklettercuss (Leitir Cois))
Nice circular route .. by PaulRevere   (Show all for Knocklettercuss (Leitir Cois))
(End of comment section for Knocklettercuss (Leitir Cois).)

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Some mapping:
Open Street Map
(Various variations used.)
British summit data courtesy:
Database of British & Irish Hills
(Creative Commons Licence), a Hill-walking Website for the island of Ireland. 2300 Summiteers, 1460 Contributors, Newsletter since 2007