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Post details Post   (Contract pics)
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simon3
2009-05-04 06:46:26
"Section of the map." from simon3 Contract pics
Picture: Section of the map. (Contract pics)

East West Map of Dublin Mountains
The arrival a few years ago of accurate and free data for height over large parts of the earths land surface (SRTM) has proved a bonanza for map makers. Map producers both commercial and not can use this data as basis for maps and diagrams such as East West's new map. (The small MountainViews coloured height map for local summits is derived from SRTM) So far, so great but with limitations we'll get to.

East-West's map has combined the contour data with much else. It is strong on many things of interest to walkers: names, alternative names, parking both official and not, bus route numbers are all well covered. Add to this mapping of forests and watercourses and this is a very useful resource. The Dublin Mountains map is the first of a series of four to cover Dublin/Wicklow so it starts further north than the Harvey map including pieces of Tallaght and Deansgrange.

Take a look at the sample of the map (on paper the km squares are 33.3mm wide). There's plenty of interesting detail such as the boot symbol, bottom left, used to indicate "access", the boardwalk, the names and historical detail which you won't find elsewhere.
Inevitably on a map with this level of ambition there are errors. Example from this sample include the absence of the stony ground around the Coffin Stone (this is on the Harvey map), the odd break in the track from the Coffin Stone to Djouch - it's a slushy track all the way. Another issue is the contour info mentioned earlier - bottom right there is stream shown - this is in a substantial gulley (one of a number) which has been mentioned by many on this site. There is no sign of the gulleys on the contours. (There is on the Harvey map and also on the OSi 1:50K). On other sections of the map there are errors to crags and the future line of the Luas after Sandyford is completely wrong.

Every map series I've seen has its foibles. With the OS for example it's the paper, the lack of recreational detail and lack of checking such as totally inconsistent forest tracks. So would these comments about East-West's maps stop me buying them? No, for walking purposes this map has considerable advantages and I would expect it is highly useable for many recreational uses (though perhaps not orienteering).

Mapping and the possibilities for more useful recreational maps have changed more in the last 5 years than in the last 50. Starting with modern PCs which with 2Gb memory can manipulate all-Ireland datasets, GPS accurate to 2m and SRTM we should now consider the internet. In future I believe we will see more collaborative mapmaking where the users join in, wiki style. This has already started - see Open Street Map or pazapas work on this site.

As for East-West's initiative - I hope they succeed since these maps have useful detail.
Ireland Map v1.91 .. by pazapas   (Show all posts)
For once no jokes .. by maclimber   (Show all posts)
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Summit Comment
Dún Briste: Climbing dun Briste
IainMiller a few minutes ago.
The first ascent by rock climbers was in May 1990 by three UK climbers who climbed a groove system up the north facing seaward face of the stack. The stack then waited 26 years for another ascent ...

  
User profile
IainMiller
IainMiller less than an hour ago.
A rock climber, hillwalker and guidebook author living, working and playing on the sea cliffs, sea stacks, mountain ranges and uninhabited islands of County Donegal. http://uniqueascent.ie/sea_sta...

  
Forum: General
Enjoy your trip
BleckCra a week ago.
The first flurry of snow here in Armagh. A biting wind. Antenna whiskers taste the chill air and the prospect of picture postcard winter days. In no time at all, the Cairngorm Mountain Rescue will...

Summit Comment
Tomies Mountain: Light on Tomies and Purple
davsheen 4 days ago.
Tomies and Purple in the Light from Muckross

  
Summit Comment
Derrygarriff: Free as a bird
Colin Murphy a week ago.
We were lucky to see a white tailed eagle gliding gracefully over Eirk Lough before before coming to rest on a rock, which provided the opportunity to capture a pic of the rarely seen bird of prey...

  
Track
The Beara-Breifne Way Day7
mlmoroneybb a week ago.
On Sunday, we were not attacked by the MacCarthys of Drishane Castle but started our walk on the O?Keefe Booning Castl walk, Len: 27.7km, Climb: 362m, Area: Paps/Derrynasaggart (Ireland)

Summit Comment
An Cnoc Fada: The majesty of the Poisoned Glen in the snow
mcrtchly 4 days ago.
A snowy day gives a different perspective on the Poisoned Glen and Crockfadda. This photo was taken with a 500mm lens at a distance of 1.5km from the Scared Heart Church and 8km from the the Poiso...

  
Summit Comment
Foardal: Beyond a shadow of a doubt
Colin Murphy a week ago.
The French writer Maupassant used to say he had lunch in the Eiffel Tower every day because it was the only place in Paris that he couldn't see the thing. A similar view might be taken of Foardal,...

  
Forum: General
Hillocks
BleckCra a week ago.
Simon. Himself is the well known to some, Bernard Hill. Less well known of course are hills to do with ants, except to some. Keep er lit though. At least some sort of discussion and of course only...

Track
The Beara-Breifne Way Day 6
mlmoroneybb a week ago.
Thanks to all for making the weekends on the Beara-Breifne Way so special. We have completed 187Km in 7 Day?s walking walk, Len: 30.3km, Climb: 781m, Area: Paps/Derrynasaggart (Ireland)

  
Summit Summary
Foardal: Simple approach from NW
Collaborative entry Last edit by: Colin Murphy a week ago.
If you want to do this in isolation, the simplest route is from the car park at V882790, and then heading SE directly up the heathery slope for 1km. The summit itself is a broad heathery mound.

  
Summit Summary
Derrygarriff: Fine summit, easily reached.
Collaborative entry Last edit by: Colin Murphy a week ago.
There are access issues around Moll's Gap, so suggest starting at car park at V882790 and proceeding up the heathery slopes to Foardal - about 1km to the SE, before walking the 1.5km to the SW to ...


RECENT CONTRIBUTIONS 1 2 3 .. 19 Next page >>