Route 1: On the N56 just S of Crolly,take a minor road on the left B833 197 A and follow along to a church car park B8387418575 B. just beyond the S end of the car parktake a track left up past a derelict building for 320m to B8402518735 C. Go up right on a less distinct track, alongside a stream, to a notch in the ridge above B8415518796 D. Head SE along a gently rising grassy hillside to a rocky knoll B8592918636 E overlooking L. Nabruckan and then past a large cairn B8561218463 F (Pt 453) on a rock strewn ridge. The mv listed co-ordinates B8570818248 G G lies some 200m further along at B8570818248 G G. However Pt 457 the OSI high point lies a further 100m away down a short incline and then up to a small but rounded, rock and grass covered knoll with a cairn. B8574718089 H. Until one or other set of co-ordinates is determined as the top it is easy, in a few minutes, to cross both points. Route 2: Go further SE along the minor road to B846 167 I above L. Caol. Park off road and go SE along a track around the N side of the lough and at it's end B850 163 J go NE (left) up the hillside for 1.7k to the top. For a looped walk use both routes, one up and the other down but note this requires 2k of road walking at finish. There are extensive views of the coastal scenery including the islands of Gola and Aranmore Linkback: https://mountainviews.ie/summit/595/comment/5354/