Cookies. This website uses cookies, which are small text files that the website puts on your device to facilitate operation. Cookies help us provide a better service to you. They are used to track general user traffic information and to help the website function properly.

Click to hide this notice for 30 days.
Welcome to MountainViews
If you want to use the website often please enrol (quick and free) at top right.
Zoom: ??
For more map options click on any overview map area or any detail map feature.
Find Suggested Walks
Find hill, mountain, island, coastal feature.

Recent Contributions
Get Notifications

Hellfire Club: Popular and well-loved amenity

Cloghmeen Hill: Gives access to a splendid ridge.

The Secret Waterfall

Crockuna: Pretty easy but rewarding Carn

Middlequarter: Highest Point is the West Quarter.89m ?

Mullaghanish Loop

Crownarad: Approach along track from south to distinctive summit.

Croaghonagh: Another access problem?

Easy bag via waymarked trail

Kilbride Vs Imaal Firing Range Backstory

Crott Mountain, near Croagh Patrick, now demo

Croaghacullin: Longish walk but worth the effort.

Conditions and Info
Use of MountainViews is governed by conditions and a privacy policy.
Read general information about the site.
Opinions in material here are not necessarily endorsed by MountainViews.
Hillwalking is a risk sport. Information in comments, walks, shared GPS tracks or about starting places may not be accurate for example as regards safety or access permission. You are responsible for your safety and your permission to walk.
See the credits and list definitions.
Video display
Nephin Begs Area   E: Birreencorragh Subarea
Place count in area: 28, OSI/LPS Maps: 22, 23, 30, 31, CBW, EW-ACC, EW-WNN, EW-WNS 
Highest place:
Slieve Carr, 721m
Maximum height for area: 721 metres,     Maximum prominence for area: 646 metres,

Note: this list of places includes island features such as summits, but not islands as such.
Rating graphic.
Knockaffertagh Mountain Cnoc Eachmarcaigh A name in Irish (prob. Ir. Cnoc Eachmarcaigh [PDT], 'hill of Eachmarcach') Mayo County in Connacht Province, in Arderin List, Quartzites and psammitic schists. Bedrock

Height: 517m OS 1:50k Mapsheet: 23&31 Grid Reference: G04715 04887
Place visited by 84 members. Recently by: kernowclimber, mcrtchly, Kaszmirek78, Carolineswalsh, srr45, tonio22, NualaB, abcd, Timmy.Mullen, ryanguinness10, elizauna, Grumbler, nupat, eiremountains, fingalscave
I have visited this place: NO (You need to be a logged-in member to change this.)

Longitude: -9.453297, Latitude: 53.984547 , Easting: 104715, Northing: 304887 Prominence: 92m,  Isolation: 2.3km
ITM: 504683 804898,   GPS IDs, 6 char: Knckfr, 10 char: Knckfrtgh
Bedrock type: Quartzites and psammitic schists., (Nephin Formation)

Eachmarcach is a personal name meaning 'horse-rider'. It is the origin of the surname Mac Eachmharcaigh, which can be anglicised Cafferkey or McCafferty and is a common surname in Mayo [De Bhulbh]. It would seem that this is the most likely origin of Knockaffertagh, though an Irish form for the name has not been found to support this. The t in Knockaffertagh is not a problem as the anglicisation McCafferty shows that such a pronunciation of Eachmarcach is possible. The hill is named Ummeraufferty on William Bald's map of Co. Mayo (1830), which appears to be a similar name with Ir. iomaire, 'ridge' as the first element instead of cnoc.   Knockaffertagh is the 517th highest place in Ireland. Knockaffertagh is the most easterly summit in the Nephin Begs area.

COMMENTS for Knockaffertagh (Cnoc Eachmarcaigh) 1 of 1  
Follow this place's comments Picture about mountain Knockaffertagh (<i>Cnoc Eachmarcaigh</i>) in area Nephin Begs, Ireland
Picture: pic:eflanaga - precipitous southern aspect
Spectacular from the South
Short Summary created by Onzy  7 Oct 2014
Knockaffertagh stands on the east side of the Glendorragha Valley, north west of Cloondaff on the R317 from Newport. There are two cairns on the summit and some craggy steep ground to the south. It is more usually climbed as part of a horseshoe walk taking in an entire circuit of the valley.

There are parking spaces within the forest to the south of the valley at G042 027 starA and G035 024 starB, a good way along forest roads. From the first of these, walk east along the track, aiming to exit the forest at G048 031 starC. For the last couple of hundred metres the ground is quite soft. From here, you have 2 options, either head directly north through the scree patches and gullies of the south face, or head north east, aiming to hit the col just north of sh295 and from there onto the east shoulder and to the summit. Either way, you will need to cross the river, which should not be taken for granted.

From here you can return the same way, or, more enjoyably, continue north and complete the entire circuit of the Glendorragha Valley, taking in Birreencorragh and its two satellite peaks. Linkback: Picture about mountain Knockaffertagh (<i>Cnoc Eachmarcaigh</i>) in area Nephin Begs, Ireland
Picture: Knockaffertagh from Glenlara
gerrym on Knockaffertagh, 2005
by gerrym  24 Sep 2005
Walked as part of the Glenlar-Birreencorragh-Knockaffertagh horse shoe on 16.9.05. From the col with Birrencorragh's NE ridge head SE over varied terrain - stones, heather, peat hags and water pools. Climb to point 467 over boulders and exposed rock with the weather creating a contrasting view over the extensive lowlands to the N, with heavy shower clouds skirting Lough Conn while large areas of sunlight gave different shades of brown across the bogland. From here get yet another perspective on Birreencorragh, with steep and scree strewn slopes. Drop down again on easy ground with two big hills on either side - Nephin to the E and Birreencorragh to the W. There is a small cairn at the rocky summit, with another lesser top just off to the E. There are far reaching views, only blocked to the W by Birreencorragh. I descended off to the S towards the meandering river in the valley below and the forestry on the lower slopes of Glenlara. The drop is pretty steep with large areas of scree at the base - there are a number of crags on the S face which could cause difficulty if get caught up in them. The river is not too easy to cross and it was at a pretty low flow. This would make a brilliant camping spot, totally isolated with big hills closing in further up the valley. The ground on the other side is wet and it is a slog up to the forest boundary - follow uphill and then drop down through clearfell to the forest track where i had parked. Was pitch black by now so had to endure a restless and chilly night sleeping in the car as the possible tent pitches i had been keeping in mind went out the window. I did not see a soul on this walk and I would totally recommend it for big views, a good days walking and the isolation it has to offer. Linkback:
Your Score: Very useful <<  >>Average Picture about mountain Knockaffertagh (<i>Cnoc Eachmarcaigh</i>) in area Nephin Begs, Ireland
Picture: Crags & precipitous southern aspect of Knockaffertagh
eflanaga on Knockaffertagh, 2007
by eflanaga  6 Oct 2007
From Birreencorragh's main summit follow the rocky spur north on a bearing of 6 degrees for 650m before turning NE on a bearing of 56 degrees for a further 658m which will bring you to a point were you can (safely) turn SE towards Spot Ht 487 and onwards to Knockaffertagh's summit. The going is easy for the first two of these stages but as mentioned below the final descent onto the col leading to Spot Ht 487 is deceptively steep. The ascent of Knockaffertagh is relatively easy. The summit is marked by a small cairn. Descending directly south from the summit my homeward route through Gortnaheltia forest was laid clearly before me with the various twists and turns planned on the map the previous night apparently and comfortingly right where they were supposed to be. I found it necessary (upon reaching the 200m contour) to veer east for some 500 metres as the ground became excessively steep - certainly more so than the map appears to suggest. Upon reaching the valley floor it is clear that a series of crags at or around the 200m contour mark the start of a fairly precipitous drop to the valley floor (see picture). Upon reaching the desired entrance to the forest IG04847 03101 followed the track over very soft ground for less than 100m turning right and proceeding across even softer ground for another 300m before track narrows then opens again and becomes solid. About 350m further on you reach a T-junction. From here it is about 2K to reach the lane and another 1k walk before turning west just short of Cloondaff to walk the final 1.2K back to the starting point. Please note however, that the OS map's interpretation of the track has a slight error (but one that can send you to a cul de sac adding an unnecessary 3k to your walk). Take a look at the map and follow the track starting about 450m to the east of Spot Ht 336m IG0396 02853. I actually joined this track at the t-junction mentioned above although map appears to show this as crossroad. The track continues downhill for another 300m or so to what appears on the map to be a staggered Xroad. In fact this is a straightforward Xroad. The track to the right quickly fizzles out while the track to the left appears to match the track as indicated on the map continuing straight for a few hundred metres before bending to the right. If you follow this you will end up at the cul de sac just below a treatment plant mentioned above!. Therefore, instead of turning left continue straight on - you will notice a small bridge about 150m ahead just as the track bends to the left.
Perhaps, (cognisant of map error) a better idea would be to leave a car, if permisable, at some point on the track above the offending Xroad (see csd's comment on Birrencorragh South Top) so that last 4.2k part of the walk can be avoided. Linkback:
Your Score: Very useful <<  >>Average Picture about mountain Knockaffertagh (<i>Cnoc Eachmarcaigh</i>) in area Nephin Begs, Ireland
csd on Knockaffertagh, 2004
by csd  18 Oct 2004
Due to an unfortunate navigational error (see Birreencorragh entry), we were unable to gain the summit of Knockaffertagh. This picture shows the route we would have taken, the shoulder in the right foreground leads down from the summit of Birreencorragh, down to a col on the left before rising again to the summit of Knockaffertagh in the left middle-distance. Linkback:
Your Score: Very useful <<  >>Average Picture about mountain Knockaffertagh (<i>Cnoc Eachmarcaigh</i>) in area Nephin Begs, Ireland
csd on Knockaffertagh, 2004
by csd  18 Oct 2004
This shot shows Knockaffertagh from the opposite (Glenlara) side of the valley, with Nephin brooding in the distance. Linkback:
Your Score: Very useful <<  >>Average
A grand soft day
by JohnQ  12 Sep 2010
12/09/2010: JohnQ : walked to this top starting from bridge at Bogadoon river on R312 approx 15 miles from Castlebar ; taking Keenagh loop walk in anticlockwise direction while M& E did the loop in clockwise .After small quarry and initial climb left the loop heading up to rocky outcrop and then gradually climbing in westerly direction waiting for Birreencorragh to show . The ground is varied not too remarkable but fine views of Nephin behind to the east. A cairn marks the top , day started clear but gradually misted over and this made Bireencorragh top not visible - but it looks a real 'jag' of a mountain - sorry no pics - headed back due south which turned out to be a good bit steeper than expected - when back from under the mist fine views of valley floor M& E having the brew at lone tree on bank of river that meanders through Glendorragha valley
Rejoined on the loop walk- more coffee- great day out - we''ll be back !! Linkback:
Your Score: Very useful <<  >>Average
(End of comment section for Knockaffertagh (Cnoc Eachmarcaigh).)

OSi logo OSNI/LPS logo
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. 2400 Summiteers, 1480 Contributors, maintainer of lists: Arderins, Vandeleur-Lynams, Highest Hundred, County Highpoints etc