Pen y Fan (Welsh pronunciation: [ˌpɛn ə ˈvan]) is the highest peak in South Wales, situated in Brecon Beacons National Park (Bannau Brycheiniog).

[1] The mountain and surrounding area are owned by the National Trust whose work parties attempt to combat the erosion caused by the popularity of this peak with walkers.

Three soldiers who died after collapsing in the field in July 2013 were taking part in a test march called Point-to-Point while undergoing Special Air Service selection.

In earlier times, Pen y Fan itself was sometimes called the '(Brecknock) Beacon' and the early modern English cartographer, John Speed, designated it as Monuchdenny.

[citation needed] The peak is a major objective in the Beacons Way, a long distance footpath which passes from east to west across the massif, and is open to all walkers.

This and other paths on the mountain are the subject of ongoing repair and maintenance by the National Trust to limit the erosion caused by the passage of hundreds of thousands of walkers each year.

The similar round barrow on Fan Foel was excavated in 2002-4 and revealed such items in the central cist, the flowers being those of meadowsweet (Filipendula ulmaria).

[12] The mountain is the highest point within the Fforest Fawr Geopark which was established in 2005 to promote economic development, particularly sustainable tourism, based on the area's geological heritage.

The obelisk, a useful landmark in misty conditions, was paid for by the proceeds of a memorial fund started when the jurors at the boy’s inquest waived their fees.

[14] From the summit on a clear day the Bristol Channel (including the islands of Flat Holm and Steep Holm), Carmarthen Bay, Swansea Bay, the Gower Peninsula, the Black Mountains, the Cambrian Mountains, Exmoor, the town of Brecon and much of Mid Wales and the South Wales Valleys, and in a north-easterly direction the Clee Hills in south Shropshire, can be seen.

[22] The car park at Pont ar Daf, 200 metres (656 ft) from the Storey Arms centre, is the most popular access point for tourists and walkers to Pen y Fan.

[17] A footpath connects the Storey Arms centre, bus stops and the Pont ar Daf car park to the path leading to Corn Du and Pen y Fan.