Baurtregaum

Baurtregaum at 851 m, is the 13th–highest peak in Ireland on the Arderin scale, and the 18th–highest peak on the Vandeleur-Lynam scale. Baurtregaum is situated at the centre of the massif of the Slieve Mish Mountains on the Dingle Peninsula in County Kerry, Ireland. It is the tallest mountain of the Slieve Mish range, with a number of major subsidiary summits.

Naming
According to Irish academic Paul Tempan, the "three hollows" in the Irish name are probably the valleys of Derrymore (north), Derryquay (north-east) and Curraheen (east), which cut into the sides of the mountain.

Geography
Baurtregaum is the highest mountain of the Slieve Mish range, which is situated on the eastern end of the Dingle Peninsula, in County Kerry. It is connected by a western ridge to the 2nd-highest peak in the range, Caherconree 835 m. Baurtregaum has several subsidiary peaks including, Baurtregaum NW Top 723 m, Baurtregaum NE Top 819 m (with northern spur Scragg), and Baurtregaum Far NE Top 603 m. The most notable of Baurtgreaum's "three hollows" is the northerly Derrymore Glen, through which the Derrymore River runs, and which contains three scenic lakes, bounded by the steep valley walls of Baurtregaum and Caherconree and the peak of Gerhane 792 m.  Also notable is the easterly Curraheen Glen, through which the Curraheen River runs, is bounded by the long easterly ridge from Baurtregaum to Baurtregaum Far NE Top.

Baurtregaum's prominence of 643 m qualifies it as a Marilyn, and it also ranks it as the 6th-highest mountain in Ireland on the MountainViews Online Database, 100 Highest Irish Mountains, where the minimum prominence threshold is 100 metres.

Hill walking
The popular route is the Derrymore Glen Horseshoe, a 11-kilometre 5-hour loop that starts from the base of the Derrymore Glen and ascends to the first summit of Gearhane 792 m, and then around the "horseshoe" to Caherconree and the summit of Baurtregaum. Options for the descent use either the Baurtregaum NW Top spur or the Baurtregaum NE Top Spur (and the Scragg) to get back to the base of the Glen. The route is recommended for its views of the Glen as well as incorporating most of the main peaks of the Slieve Mish range, and thus is also called The Slieve Mish Circuit in some guidebooks.