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Post details Post   (Expand pics)
Mick Farren entere.. by simon3   (Show all posts)
PURE (Protecting U.. by simon3   (Show all posts)
Like CaptainVertig.. by bejasus   (Show all posts)
It seems very quie.. by CaptainVertigo   (Show all posts)
simon3
2006-12-21 14:12:04
SMC contour maps
Parodes -- yes I would agree that the contour maps are a big advantage on a GPS. The contours are not particularly accurate. They come from "SRTM" data (Shuttle Radar Topography Mission) run by NASA some years ago. They only released 3 arcsecond data. This means for Ireland that they give height information at a spacing of around 56m by 90 metres. Much of the contour detail on the SMC system is therefore "interpolated" that is guesstimated.

MountainViews has a system that allows people to correct summit positions using GPS measurements. Over half the summits in our current list have at least one measurement and as time goes on this will improve. I take your point that what actually is the summit is not clear in some cases. Quite often there is no cairn or marking or there is a trig pillar but not quite at the summit.
I suppose it would be possible to come up with a system which identifies the exact point that is the summit. Would this really be worthwhile? It is possible incidentally that the SMC V2 map is not using the most uptodate positions for summits. Another GPS map we offer (from member Pazapas) uses a recent upload of data - the contours are 50m however.
It now appears tha.. by CaptainVertigo   (Show all posts)
Thanks to Mountain.. by padodes   (Show all posts)
Sunday 3rd was one.. by simon3   (Show all posts)
The Irish Farmer's.. by CaptainVertigo   (Show all posts)
Gyms, ghastly plac.. by simon3   (Show all posts)


RECENT CONTRIBUTIONS 1 2 3 .. 26 Next page >>
Summit Comment
Doonvinalla E Top: Coastal Hill
sandman 4 hours ago.
Easy access from the pier at Portacloy F8395844259 follow the Benwee Loop walk and branch off where appropriate . The photo shows views across towards Benwee Head in the background .

  
Summit Comment
Doonvinalla N Top: Coastal Hill
sandman 4 hours ago.
Looking across to Doonvinalla N Top from E Top i decided it was above my pay grade to attempt the summit climb today . But to the right of the photo a route to the top seemingly exists so another ...

  
Summit Comment
Doonvinalla N Top: Coastal Hill
sandman 4 hours ago.
The look out post 3 years after my first visit.

Summit Comment
Geevraun Point: Coastal Hill
sandman 4 hours ago.
Located in an area of stunning coastlines this hill does not disappoint . A fantastic linear coastal walk exists from Beldberg Pier to Porturlin Pier well worth the effort but if yo wish to visit ...

  
Summit Comment
Horse Island: Mayo Island
sandman 5 hours ago.
View of Horse Island from Geevraun Point.

  
Summit Comment
Raheen: Coastal Hill
sandman 5 hours ago.
The photo shows the Megalithic Tomb adjacent to the summit of this small hill which is an easy accent from the old turf cutting track located at G0018340427.

Summit Comment
Lackan Hill: Coastal Hill
sandman 5 hours ago.
Arriving close to the location i came across two farmers moving cattle who i asked about Lackan Hill they looked bemused replying you will not find any hills in here so i quickly changed to standi...

  
Summit Comment
Mullaghnacross Hill: Coastal Hill
sandman 5 hours ago.
You have an option for access to the summit area of this hill either by the farm gate located at G1939433614 or thru the front gate of the house adjacent now thru the front door down the hall and ...

  
Summit Comment
Doonvinalla N Top: Coastal Hill
sandman a week ago.
On 26/4/2014 i spent a very enjoyable afternoon walking this area visiting the army observation hut and the stone constructed EIRE marking as part of an addition to the Benwee Head Loop walk but i...

Track
Pic du Canigou
David-Guenot 4 days ago.
Ascending Catalogna's sacred mountain from the hamlet of Los Masos de Vallmanya, on well-marked trails, with two breaks walk, Len: 24.8km, Climb: 1853m, Area: France, Occitanie ()

  
Track
Exploration of Wicklow Head from the north.
simon3 2 days ago.
As you will immediately see from the track this was an exploration of what is possible thoroughly exploring various d... walk, Len: 6.6km, Climb: 126m, Area: Brides Hill, Wicklow Coastal Hill (Irelan

  
Summit Comment
The Eagles Rock: A short but sweet scramble
IainT 4 days ago.
One of the few Irish summits that needs the use of hands by the easiest route. Those happy with exposure can get a good airy scramble (grade 2, pushing 3 maybe), by slanting left up an obvious ram...


RECENT CONTRIBUTIONS 1 2 3 .. 26 Next page >>