Granite markers on Wicklow and Dublin mountains

radonicus

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

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

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.

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

Trig points, WD stands for War Department.

Planet X

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

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

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.

mloc123

radonicus wrote: »

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

There is a good few between seefingan, seahan and corrig... I think they mark the boundaries of the range?

radonicus

mloc123 wrote: »

There is a good few between seefingan, seahan and corrig... I think they mark the boundaries of the range?

Appears so.

Carawaystick

Are the vertices of the Crows Foots not marking an accurately surveyed position? Theres a few on buildings in Arklow
They show up on the 25" maps

Alun

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