| Keadeen Mountain | |
|---|---|
 View fromRathdangan in south | |
| Highest point | |
| Elevation | 653 m (2,142 ft)[1] |
| Prominence | 334 m (1,096 ft)[1] |
| Listing | 100 Highest Irish Mountains,Marilyn,Hewitt,Arderin,Simm,Vandeleur-Lynam |
| Coordinates | 52°57′02″N6°34′53″W / 52.95056°N 6.58139°W /52.95056; -6.58139 |
| Naming | |
| Native name | Céidín |
| English translation | flat-topped hill |
| Geography | |
  Keadeen Mountain Location in Ireland | |
| Location | County Wicklow, Ireland |
| Parent range | Wicklow Mountains |
| OSI/OSNI grid | S9539489764 |
| Topo map | OSiDiscovery 62 |
| Geology | |
| Mountain type(s) | Dark slate-schist, quartzite & coticule[1] |
Keadeen Mountain (Irish:Céidín, meaning 'flat-topped hill')[2] at 653 metres (2,142 ft), is the 152nd–highest peak inIreland on theArderin scale,[3] and the 184th–highest peak on theVandeleur-Lynam scale.[4][5] Keadeen is situated at the far southwestern end of theWicklow Mountains range, separated from the largemassif ofLugnaquilla on its own small isolatedmassif withCarrig Mountain 571 metres (1,873 ft); it overlooks theGlen of Imaal from the south.[6]
According to Irish academic Paul Tempan, "Keadeen" is also the name of atownland in the nearby parish of Kilranelagh.[2] In Irish the peak was sometimes calledCéidín Uí Mháil in full, which was a name derived from the native group who gave their name to the nearbyGlen of Imaal.[2]
The hilltop is crowned by a robbed-outcairn of unknown date.[7] Just below the cairn acursus monument of about 300 m length and 40 m width stretches down the western slope of the mountain. Its limiting banks and ditches are still visible in the landscape as roughly parallel 0.4 m high ridges and 0.3 m deep furrows respectively. According to its investigators the cursus is oriented towards the sun rise on summer solstice: standing at the centre of the cursus the sun rises behind the summit of Keadeen mountain. The cursus is tentatively dated to the Middle Neolithic (ca. 3500 to 3000 BC).
These monuments are embedded in a rich prehistoric landscape with prehistorichillforts and dozens of cairns on top ofCloghnagaune, Spinans Hill andBaltinglass Hill to the west as well as severalbarrows there and in the valleys below. In fact the landscape between the valley ofRiver Slaney and Keadeen Mountain can be compared toBrú na Bóinne.
Dwyer–McAllister Cottage is at the northern base of Keadeen at Derrynamuck, whereMichael Dwyer, the1798 rebellionUnited Irishmen leader, escaped from the British soldier's siege on Sam McAllister cottage in December 1799 up the slopes of the mountain.
Walk 11: Keadeen Mountain
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