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: https://mountainviews.ie/summit/878/comment/23858/