They rise from the central plain of Ireland to a height of 527 metres. While not very high, they are extensive by local standards. The highest points are Arderin at the southwestern end of the range and Baunreaghcong at the end of the Ridge of Capard.
The Slieve Bloom Mountains stretch from near Roscrea in the southwest to Rosenallis in the north west forming a link between County Laois and County Offaly. Access to the mountains and the most popular attractions is easiest by taking Exit 18 off the M7 for Mountmellick and following the R422 for Rosenallis, Clonaslee, Cadamstown, and Kinnitty. There are 3 routes which cross the mountain.
From Clonaslee here it is very easy to follow the mountain road over ‘the Cut’ towards Mountrath. From Kinnitty take the road from the centre of the village opposite the Catholic Church past Longford Church to Glendine Gap near Ard Erin the highest point in the mountain. For some splendid views turn left onto the R440 towards Kinnitty one of the small villages nestled at the foot of the mountains