Take the N59 from Westport towards Leenaun. At about six miles turn right as signed for Drummin passing through the village and on to Sheeffry Bridge. Park on the wide shoulder (3 - 4 car spaces) on the right side just past where the “cross country” or alternative Western Way meets with the road (915693 D). Walking westward along a barely discernable track to a gate is the way to the open mountain.
Start climbing or continue and save the first climb for the first Col on your left. From there it is a sustained climb to the top of the plateau. Once on the plateau follow the curvature west until you reach the trig point at spot height 762 (Tievenabinnia). From here there are fabulous views to be savoured. Heading back east to spot height 742 marked by a kern opens up a wonderful panorama. The nearby peat hags provide shelter for a rest regardless of the direction the wind. From here, head south east across the plateau to the Col at approx 890:704. Be careful descending as it could prove slippy in certain conditions. Once across the Col head north east and follow the shoulder to the next Col at Lough Lugacolliwee.
After admiring the lake head directly south picking up and following the line of the “cross country” Western Way. The OSI markings in this case hide the fact that there is another small tributary of the Glenlaur following the same route. Keep to the west side of this tributary to stay away from steep gullies and barbed wire. Where it meets the Glenlaur is crossable in dry weather and a marker post on the opposite side indicates where a wooden step-over facilitates crossing the wire fence adjacent to the opposite bank. In wet weather it may be necessary to follow the Glenlaur upstream to find a crossing point and to avoid the wire fence. Once over the Glenlaur and fence it is only a short distance to the parking spot.
The walk should take about 4/5 hours and is about 16 kms. Because of their shape the Seeffry’s usually involve having to undertake a car split unless you wish to come back the same route. This extended horseshoe route takes in most of the ridge and only necessitates the use of one car. Linkback: https://mountainviews.ie/summit/82/comment/6088/

None of the summits on the ridge are named on the OS - but I've visited the grid references. Linkback: https://mountainviews.ie/summit/82/comment/584/