Granite markers on Wicklow and Dublin mountains

radonicus · 08-08-2020 11:08pm #1

Hi.

Does anyone know what the small square granite markers are on various summits in the Wicklow and Dublin mountains?

These are separate from the OSI type larger stones. They are roughly 1 foot square, approx 3 foot tall and seem to have information inscribed on them.

Enduro · 08-08-2020 11:47pm

Are you by any chance referring to trig pillars?

http://brothersofthelug.ie/passage-tombs-tom-barragry/

https://en.wikipedia.org/wiki/Triangulation_station

http://www.trigpointing-ireland.org.uk/trigpoints.php

radonicus · 09-08-2020 9:02am

Enduro wrote: »

Are you by any chance referring to trig pillars?

http://brothersofthelug.ie/passage-tombs-tom-barragry/

https://en.wikipedia.org/wiki/Triangulation_station

http://www.trigpointing-ireland.org.uk/trigpoints.php

Hi.

Possibly so.

The one on Lobawn was similar in shape and size to the Japanese class 3. File:3rd_class_triangulation_point_in_Shiroyama_Park_in_Inagi.jpg

File:3rd_class_triangulation_point_in_Shiroyama_Park_in_Inagi.jpg

What appeared to be inscribed on it was W↑D No. x (the number was obscured). However the arrow was pointed east direction, towards Table Mountain.

loobylou · 09-08-2020 9:07am

Trig points, WD stands for War Department.

Planet X · 09-08-2020 9:12am

6 of them along the north ridge of Glen of Imaal.

Don't think they're Trig points. They're below mountain tops. I think they were markers to indicate that, during the Troubles, they indicated the boundary of Imaal Glen to "advise" the Irish to keep out.
Placed there by the English.

I have a few of them marked as "Waypoints"on GPS in case......

radonicus · 09-08-2020 10:32am

Planet X wrote: »

6 of them along the north ridge of Glen of Imaal.

Don't think they're Trig points. They're below mountain tops. I think they were markers to indicate that, during the Troubles, they indicated the boundary of Imaal Glen to "advise" the Irish to keep out.
Placed there by the English.

I have a few of them marked as "Waypoints"on GPS in case......

One on Seefingan too but I didn't see an inscription.

Alun · 09-08-2020 10:48am

They're War Department markers. The arrow is just a symbol, it's not pointing anywhere. The same arrows are commonly used to mark British government property of all sorts but mainly military. The stone markers can be found marking the boundary of the Glen of Imaal artillery range and also the Kilbride rifle range, hence the ones around Seefingan.

Some of the them are marked on the East West maps with the letters WD, by the way.