The Twelve Bens, or Twelve Pins (Irish: Na Beanna Beola), is a mountain range of sharp-peaked quartzite ranges located northeast of Roundstone in Connemara in the west of Ireland. Dedicated fell runners attempt to hike all twelve peaks in a single day. Topographically, this range is partnered with the Maumturks range on the other side of the lonely Glen Inagh (and the route of Western Way long distance path). Frequent rainfall and steep-sided mountains produce an abundance of small trickles and streams which descend into wide-bottomed valleys below the Twelve Pins to join larger streams with riffles and pools. The highest point in the Twelve Bens is Benbaun at 729 metres (2,392 ft). They provide excellent walking and climbing opportunities for outdoor enthusiasts.
The following table lists the 12 highestmajor mountain peaks of the Twelve Bens Mountains, all with a topographic elevation of at least 516 metres (1,693 ft). There are a number of mountains higher than Benglenisky, but do not have sufficient prominence to be included in this list.