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Knocknashee facts for kids

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Cnoc na Sí
Highest point
Elevation 276 m (906 ft)
Prominence 171 m (561 ft)
Listing Marilyn
English translation Hill of fairies
Language of name Irish
Parent range Ox Mountains
OSI/OSNI grid G556192
Cnoc na Sí

Knocknashee (Cnoc na Sí in Irish) is a 276-metre (906 ft) Marilyn in the Ox Mountains, County Sligo, Ireland.


The River Moy rises at the foot of Knocknashee.


Knocknashee hill consists of a limestone top with shales underlying the lower slopes.


Knocknashee was identified as a hilltop fort in 1988. It is an enclosed hill fort with limestone ramparts containing cairns, burial chambers and hutsites. The fort is 700 metres long and 320 metres wide and is enclosed by two earth and stone ramparts covering an area of 53 acres. The site was discovered during an aerial survey of county Sligo by the Office of Public Works in 1988.


The name of the plateau itself comes from Irish, ‘knock’ (cnoc) meaning ‘hill’ and ‘shee’ (sí) meaning ‘burial mound’ or 'of the fairies'. In older Irish Knocknashee is known as Mullinabreena.

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