There is a large car park on the N15 at H043 873 A. Walk a few metres up the road to the right and you will see a substantial track across the road. Follow this track for about 1.5km, (which incidentally, is driveable for about 1km, and has space to park.) until you reach point H035 884 B. Leave the track and cross flat, marshy ground for about 200m and then head directly up Brown's Hill in a NW direction. The initial ascent is quite steep but eases at about 400m elevation. You will pass a cairn on a shoulder of the hill before reaching the rocky summit of Brown's Hill about 500m later, which is also marked by a cairn. From here turn directly west, descending to a flat col before turning south up the gently rising ground at H018 893 C. Continue directly south for just under 1km to reach the summit of Croaghnageer East top Summit is marked by cairn and has fine views of Lough Mourne to the east. Time to summit, 1 hour 45 minutes. Linkback: https://mountainviews.ie/summit/1446/comment/18074/