Did the Birrencorragh horseshoe on May 10th 2009 on a quite marvelous day of sushine - this is a walk that is a must for Mayo based walkers. Parked the car at ref 052013 E just north of the small settlement of Cloondaff - followed good forest road north to T junction just after the bridge over river at 047022 F turned left to end of this track. At this point had to clamber through some forest to get out onto the hill and followed the valley up to first peak (with the forest on your right for the first 200 metres or so) the peak is at 340 unnamed on the OS map but at 026018 G then straight north up the southern spur of Bireencorragh then round to the east and south again up to Knockafertagh - the views and tops have been described by others writing about this walk but the view down to the valley below is spectacular and view across to Clare Island quite superb. Made mistake of dropping down into the valley too early, it was VERY BOGGY and had to cross river in Glendorrah at 048035 H which proved difficult and then headed into forest to pick up what we thought would be a good quality forest track tto get back to the car - a quagmire which we kept sinking into at one stage nearly to our waist. Would recommend coming down off Knockaffertagh in south easterly direction and even though tired after a tough walk to take in the last small hill in this circle of great peaks with two cairns marked as 295 nd 215 on the map in order to drop down to the forest road that runs south west from Letterkeeghaun joining the trail again at 067030 I and then walk back to the car. Even better idea if two of ye could do it is to take two cars and leave one at the end of the small track whcih ends at ref 072044 J Going through the forested plantation at the end of the walk was a nightmare or rather quagmire. Great walk though sorry no pics to upload! Linkback: https://mountainviews.ie/summit/112/comment/3763/