Park at Ballyduff graveyard, Q54076 10104 A , room for 10 cars.
Walk back towards the R560 from the graveyard and turn right. Walk around 500m along the road and cross the bridge over the Glennahoo River. Take care while walking along the R560 as it is a busy road with no verges. After crossing the bridge, continue along the R560 for another 300m. Leave the R560 and turn right into a track at Q5460010350 B . There is an old farmhouse with dormer windows and a sloped flat roof extension at the track entrance. Continue south-eastward for around 150m along this track to reach a T-junction.

Turn right there and follow a lane southwards to Maghanaboe at the head of the valley. The Glennahoo River twists and turns along the valley floor to the right. The narrow valley, some 3km long, is flanked by a sweep of steep slopes clothed with banks of scree. Go to Beenbo first and then cross from there east to Slievenagower.

Note: We no longer recommend going on the ridge immediately south of the graveyard because of access issues however if you approach the landowner there you may get permission. Trackback: https://mountainviews.ie/summit/500/comment/5259/

Quite a brave statement made by Adrian Hendroff in his recent and surpassingly excellent walker's guide 'The Dingle, Iveragh & Beara Peninsulas'. Does it live up to the billing? Judge for yourself on the attached photo.
We took in Sliabh na nGabhar as a circuit from Beenbo and thence to Sliabh na Leice and An Cnapán Mór, as detailed in the aforementioned guide. The entire circuit took us seven and a half hours including stops in good conditions. Trackback: https://mountainviews.ie/summit/500/comment/6802/

I'll have to take people's word about the views here, but on the day we did it there was a 100km gale, rain and near zero visibility, as you can probably see in the pic. The summit itself is a quite nondescript heathery mound. The approach from the east seemed a lot steeper than seems to be indicated on the OSI map. Trackback: https://mountainviews.ie/summit/500/comment/17867/