Well on my map the grid reference given is marked as Brislagh with Curlew Mtns in larger print spread out over the hills to the East.
Taking a side road to the left of the R295 Boyle/Ballymote road we viewed the rather uninspiring tree covered hump of Brislagh. We eventually parked slightly beyond the apex of the road on a slight downhill at a layby with a break in the forest and a very rough path leading uphill to the right of the road at 746 046 A. We walked, or should that be stumbled up this path to it's top then turned right into a seemingly impenetrable bundle of fallen trees and brambles into the moss covered dark forest beyond. After about 10 mins of this we came upon a clearing which was no better underfoot but gave fine views to Kesh Corran and Bricklieve Mtn, both of which we had climbed earlier and both of which were still cloud covered. We re-entered the dark forest heading roughly North and up a noticable incline trying to find anything that could be called the "top" amidst the trees. After about 15 minutes somewhere in the forest we believed we had reached a crest as a downhill was noticed to our left and a slight slope down in front of us. We then stumbled upon a small stone wall and a larger stone pillar covered in moss, surrounded by trees. Is this Brislagh cairn? It's not marked on my map but the small hill to the West of here (Derrinoghran) visible from the road and treeless has a noticable cairn also not marked. Can anyone verify this?
Pleased with ourselves and jolly from finding what we claimed to be the top we made the hill walkers mistake of not taking a compass reading before descending and consequently ended up going round in circles in the forest! The compass duly came out and was used when we realised our errant ways and eventually we retraced our route back to the car.
A short but strenuous walk over very rough uneven ground and through thick dark disorienteering forest rewarded by finding a cairn. Nice. Linkback: https://mountainviews.ie/summit/997/comment/4067/

It's hard to believe this has been visited by 19 members. paddyhillsbaggers description is about right. The first stage is a stumble over stumps and felled trees before entering the forest. I had my GPS and would not recommend trying this without one. The forest is quite eerie and it looks like nobody has been there since paddyhillsbagger 10 years ago. There are a lot of fallen trees that are now rotted and half fallen ones leaning up against others that give the feeling they could fall further at any given second. I made it to the area I believe to be the highest point but I did not find a trig point. There is possibly a cairn but if there is it is well hidden under the large number of uprooted trees. Linkback: https://mountainviews.ie/summit/997/comment/20461/