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Simon helpfully ma.. by eflanaga   (Show all posts)
I'm not so sure th.. by simon3   (Show all posts)
Why are there so f.. by padodes   (Show all posts)
simon3
2007-11-09 10:36:05
OS on the wireless
I had a listen to this. The format is .smil which required me to download the free Real player - tedious but perfectly feasible.

The production included a review of OS mapping from the formation of the state in 1922. For hillwalkers there is some interesting background such as about the erection of the trig pillars (mostly in the 1960s) and the re-mapping to use the national grid in the 1970s. And of course there were funny stories such as the one about the surveyor that bought a ball of wall and used it likeTheseus escaping the Minotaur to find his way back. Only the wool had been broken and he got lost, which around Cuilcagh could mean a longish tramp on a huge bog with dangerous sinkholes.

There was some mention of the half-inch series which were the maps that were all that were available until the 90's Really they were very hard to use and had some infamous errors in the contours such the one near Binn Chaonaigh in the Turks.

The 1:50,000 maps we now use are really much better, in particular in the contours. They stand well for readability in comparison with maps such as I have used in France and in Spain, though of course the layer tinting used here works much better in a territory such as Ireland where the maximum height is only around 1000m.

The OSI 1:50k maps are made by aerial survey which is responsible for the better contours. On the other hand, given that there is little surveying in person, there are different forms of error - too many in my opinion - such as errors of detail in river courses and errors about tracks through forests.

Still I wouldn't swap my 1:50k or Trailmaster maps for the half-inch. I rarely use the half-inch at all now though sometimes it is a convenient scale for driving with an eye to the landscape.

Thanks Moac for pointing out something well worth listening to.
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RECENT CONTRIBUTIONS 1 2 3 .. 16 Next page >>
Forum: General
MOUNTAINVIEWS MEMBERS MEET APRIL 2018
liz50 a day ago.
It is this Saturday 28th April! Visiting some of the lesser know summits in the Galtees, including Temple Hill and Lyracappal. If you would like to join us please contact Liz at elizabethashton201...

  
Summit Comment
Galtybeg: One of those rare perfect days
jackill a day ago.
Every once in a while comes a rare day when everything just works, even though it shouldn't.Dodgy back, banjaxed knees, starting time silly o'clock, have to be home by noon to evict the crows from...

  
User profile
derkelly274
derkelly274 2 days ago.
Enjoy climbing the odd hill. Hope to visit more and more.

Track
Nephin from the North....stunning views.
derkelly274 a day ago.
First time climbing Nephin for both myself and my friend. We decided to go at it from the North as it seemed like a more walk, Len: 5.3km, Climb: 644m, Area: Nephin, North Mayo (Ireland) Nephin

  
Summit Comment
Lugduff: A high point on long ridge separating Glendalough from Glenmalure
Bunsen7 a day ago.
This picture is taken pretty much directly to the west of Lugduff across Glenmalure on an approach to Camenabologue SE Top.Most people will probably take in Lugduff as part of a circuit of Glendal...

  
Forum: General
An Alp for OAPs...
Colin Murphy 6 days ago.
If you an ageing hillwalker like myself who might have liked to bag an ‘Alp’ but are too long in the tooth to contemplate such an adventure, fear not, there is a simple little Austrian Alp you can...

Summit Comment
Camenabologue SE Top: Direct Route from Glenmalure
Bunsen7 a day ago.
Followed directions posted on MV to find the forest ride up from Glenmalure. See track 3766.The first section of forestry SW of the forest track has been felled, making the forest ride more obviou...

  
Track
Camenabologue SE
Bunsen7 4 days ago.
This shortish alternative track makes use of a forest ride (as heralded by Simon3) from Glenmalure to reach Camenabol... walk, Len: 10.6km, Climb: 664m, Area: Camenabologue SE Top, Dublin/Wicklow (Ir

  
Summit Comment
Bealick: Between two counties
Wilderness a day ago.
I approached this mountain from the North East ,coming from the Coomataggart mountains. When I got to the top I had to walk around for a few minutes to pinpoint the true summit; which I'm sure is...

Track
Mullaghcleevaun circuit
osullivanm 4 days ago.
A very pleasant circuit although some difficult ground between Duff Hill and the return to start of hike. walk, Len: 17.3km, Climb: 792m, Area: Black Hill, Dublin/Wicklow (Ireland) Blac...

  
Forum: General
MOUNTAINVIEWS MEMBERS MEET APRIL 2018
liz50 a week ago.
Not long now until the first Mountainviews members meet of 2018. We will be walking in the Galtee mountains on Saturday 28th April. If you are thinking of joining us and would like more details pl...

  
Summit Comment
Nephin: A looped climb from the North. Stunning views all around!
derkelly274 a day ago.
First time climbing Nephin for both myself and my friend. We decided to go at it from the North as it seemed like a more interesting prospect. There was access to the woods on the northern slope o...


RECENT CONTRIBUTIONS 1 2 3 .. 16 Next page >>