Go to the forest entrance at S22452 09704 A. there is room here for a few cars.
Walk down the forest track, crossing a ford and follow the track until you can see open ground.
Walk south along the edge of the forest and then uphill to the summit.

Three curious rusting milk churns stand guard nearby to 3 cairns. Linkback: https://mountainviews.ie/summit/821/comment/5580/

I approached Bleantasour from Milk Hill, which is an easy 20 minute trot. As with Milk Hill, the summit has been burned recently, and (churns aside) is rather unremarkable save the nice views. I also spotted a fox out on a mission at 2.30 pm in the day. Linkback: https://mountainviews.ie/summit/821/comment/4583/

I did this in conjunction with Milk Hill, which made for an enjoyable 2.5 hr relatively easy walk. See Milk Hill page for starting point. From Milk Hill summit head SSW for about 1.8km, mostly over shortish heather and long grass, the terrain boggy in places. From the col the ascent to Blentasour is a mere 35m. Two substantial cairns mark the otherwise unremarkable summit area, although they are not actually on the highest point, which is about 50 metres or less to the east. From summit turn NW for about 1.5km until you reach the tree line and follow it until you reach the track to the west. Good views from Knockmealdowns and Comeraghs from top. Linkback: https://mountainviews.ie/summit/821/comment/21848/

As I was descending Blentasour I spotted this sinking sun behind clouds over what I think are the distant Galtees. Linkback: https://mountainviews.ie/summit/821/comment/21849/