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Inishowen Area   Iskaheen Subarea
Place count in area: 27, OSI/LPS Maps: 2, 3, 4, 6, 7 
Highest place:
Slieve Snaght, 615m
Maximum height for area: 615 metres,     Maximum prominence for area: 600 metres,

Note: this list of places includes island features such as summits, but not islands as such.
Rating graphic.
Holywell Hill Hill Cnoc an Tobair A name in Irish
(Ir. Cnoc an Tobair [], 'hill of the well') Derry/ Donegal County in Ulster Province, in Binnion List, Schist and grit with thin marble units Bedrock

Height: 260m OS 1:50k Mapsheet: 7 Grid Reference: C38500 17100
Place visited by 24 members. Recently by: cody1, m0jla, eamonoc, Fergalh, sperrinlad, eejaymm, Aidy, jimmyread, chalky, David-Guenot, sandman, Garmin, AntrimRambler, slemish, conor1
I have visited this place: NO (You need to be a logged-in member to change this.)

Longitude: -7.399194, Latitude: 54.999872 , Easting: 238500, Northing: 417100 Prominence: 255m,  Isolation: 3.2km,   Has trig pillar
ITM: 638441 917085,   GPS IDs, 6 char: HlywHl, 10 char: HlywlHil
Bedrock type: Schist and grit with thin marble units, (Lough Foyle Succession)

Situated in Altaghaderry townland. There is a holy well and megalithic cairn on this hill [The Heritage of Inishowen, Mabel R. Colhoun].   Holywell Hill is the 1251th highest place in Ireland. Holywell Hill is the most southerly summit in the Inishowen area.

COMMENTS for Holywell Hill 1 of 1  
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A short but enjoyable stroll. .. by group   (Show all for Holywell Hill) Picture about mountain Holywell Hill in area Inishowen, Ireland
Picture: Trig Pillar on Holywell Hill. MV high point is raised ground on right about 100 metres from the tri
Small hill but worth a visit if in the area.
by Harry Goodman  9 Jul 2010
My initial access to this hill on 7 July 2010 was from the B193 between Derry and Newtown Cunningham. Just W of the small village of Killea at C372147 A I turned right on to a minor road signed L2031 and followed it up through a cross-roads for about 2km to the start of an access road for a communications mast where there was sufficient room to park off road C3767716800 B without blocking the access gate. Once over the gate, perhaps the most strenuous part of the walk, I followed the road up where it levelled out and swung right towards the mast about 100 metres away. At this point I climbed over a gate on the left and followed a firm grassy surface SE to a fence just below an obvious raised area topped by a pile of stones, built around and almost concealing the trig pillar C3855916981 C. From here it was a short walk of about 100 metres N across the heather to the unmarked MV high point at C385171 E. Having been there, and having checked the respective heights of the MV top and that of the trig pillar, using my basic Garmin e-trex GPS, it seems to me, both visually and from the readings, that the trig pillar location is at least a metre higher if not two. However until someone better equiped that me checks it out it is quite easy to visit both "high points". I descended by way of ascent all within 25/30 minutes of easy walking. From the top I had a fine view across NW to the neighbouring hill of Greenan Mountain with the large stone Cashel of the Grianan of Aileach, prominent on it's top. This was once the seat of the O'Neills, Kings of Ulster and is well worh a visit when in the area. It is possible to drive to the top. Further to the NW across Lough Swilly were the hills of Fanad and almost due N was Scalp Mountain. To the SW was Dooish Mountain near Newtown Cunningham, another MV listed hill which could easily be included with Holywell Hill during a drive from Derry to Letterkenny by the B193. Both walks, including the off route driving would only add about an hour to the journey. Linkback:
Your Score: Very useful <<  >>Average
a quickie! .. by slemish   (Show all for Holywell Hill)
At least it's better than Mongorry Hill... .. by Peter Walker   (Show all for Holywell Hill)
Nowt many places to park around here, but we sque .. by three5four0   (Show all for Holywell Hill)
The Charm Is In The Views .. by Aidy   (Show all for Holywell Hill)
(End of comment section for Holywell Hill.)

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Some mapping:
Open Street Map
(Various variations used.)
British summit data courtesy:
Database of British & Irish Hills
(Creative Commons Licence), a Hill-walking Website for the island of Ireland. 2100 Summiteers, 1400 Contributors, Monthly Newsletter since 2007