Clogrennan Hill is a part of an area of upland but is not substantial enough to appear on Ordnance Survey maps -- it claims 921st spot on the list of highest summits in Ireland!
Terrain: Forestry roadways, woodland tracks
Leighlinbridge is on the N9. At the Arboretum Garden Centre in Leighlinbridge, turn right on to a minor road signposted for Ballinabrannagh. After 4.7k turn left and after just 1k you enter the Ballinabrannagh village -- turn right at the primary school. After 800m turn left at the sign for Clogrenane Lime -- the trailhead is at the entrance to Clogrennan Wood, 1k on your right.
Starting from the car park, follow the purple arrow along the forestry roadway for 500m to reach a Y-junction. This is where the loop begins. Proceed straight.
Continue to follow the forestry roadway for 200m to cross a stream at a bridge and another 300m takes you to a woodland track on your left where you turn left. Follow the track as it zig-zags uphill. At the top of the climb, the loop joins a sandy forestry track and turns left.
Over the next 500m the terrain changes to forestry roadway -- and fine views of Carlow town and the River Barrow open up. Cross a stream at a 'ford' at a sharp left bend and continue for 300m to regain the junction from where you started the loop. This time turn right and enjoy the last 500m back to the trailhead.