I visited the Bluestacks in September 2023 and after parking next to the old schoolhouse at G959 941 A , I crossed the Reelan river and approached Croaghgorm via Glascarns Hill, Croaghbane and Ardnageer. I thought it was worth mentioning that the route involved several crossings of what looked like fairly new barbed wire fences, with -as far as I could see- no stiles or gates. So I managed to improvise some protection and ensure no damage to fences or me with a rolled up fleece, which made the crossings straightforward enough as the fences (mercifully) weren't very high, even for a small bloke like me. The only stile I found was handily enough just before the true top of Bluestack itself, and I was grateful for that as I had a brief food and tea stop on Croaghgorm before dropping down into the first gully to the NE to make my way back to the start point, being careful to keep height as I rounded the hills until I was past the lough and had eyes on the copse and farm which were next to the Sliabh na Finne and my entry track. I used my GPS to locate the sad wreckage of the Sunderland aircraft and took a couple of pictures while standing for a few moments in the silence to spare a thought for the poor souls who perished here. As I descended, I was still finding wreckage for hundreds of yards down the hillside. The road back was made interesting by the presence of regular bog-holes , well-disguised by well-grown heather and grasses....I am guessing because of the complete absence of sheep on the higher slopes, due perhaps to the fences. The downside of "re-wilding"! As I crossed the final barbed wire fence , I was glad enough to greet our woolly friends again and see clearly where I was walking due to their grazing and tracks .I still managed to nearly go over on my backside a couple of times though as the ground was pretty boggy after the wet Summer of 2023, even though my walk coincided with the glorious dry spell of early September. Lucky me! After ducking my head in a pool next to the river bridge and reviving myself, I checked my GPS tracker, and found that over my undulating route I had managed to clock up nearly 4000ft of ascent. No wonder I had dragged my weary feet all the way back up the road from the river to my car. A memorable day and no mean challenge with the walk from Ardnageer to Bluestack being quite a lengthy trek after the relative ease and speed of the first three tops. A good and varied hike and 6-7 hour expedition using the route I described for someone of reasonable fitness, I would say. Linkback: https://mountainviews.ie/summit/150/comment/24040/