[RWD version 1 ] Corick Mountain rises relatively close to the A6 Glenshane Pass expressway, but its ascent is a stubborn little number. It's possible to park at the entrance to the forest on a track leaving the road on its south side. A descent leads to an obvious track junction; I turned right here. I then chose to turn sharp left and ascent a firebreak on the right prominent on the approach...ghastly in its lower reaches and still fundamentally frustrating higher up. Once onto the upper slopes I plodded up to the ridge and its attendant fence; a short walk south alongside it from here leads to the top (which could be on either side).
On the way back I decided to pursue a course a bit to the north to clip the edge of the forest; this was a lot easier than the ascent and has the added bonus of passing a picturesque little gorge towards the foot of the slope. Once down to the level of the forest a track leads back right to rejoin the outward route.