SN4019 : Ordnance Survey Benchmark - Carmarthen, Picton's Monument

taken 4 years ago, near to Carmarthen/Caerfyrddin, Carmarthenshire/Sir Gaerfyrddin, Great Britain

Ordnance Survey Benchmark - Carmarthen, Picton's Monument
Ordnance Survey Benchmark - Carmarthen, Picton's Monument
Ordnance Survey Benchmark (OSBM) used for levelling height above Ordnance Datum (OD).
Height: 30.2588m OD (Newlyn). Mark verified by the Ordnance Survey in 1976. Description: WALL NE ANG PICTON MON N FACE. 0.5m above ground. 3rd Order BM.

The mark was used on the Llanstephan to Dolfor Toll-house line of the First Primary Levelling of England & Wales in 1856-1857. It was levelled with a height of 99.615' above OD (Liverpool). Description: 17. Mark on base of railing enclosing Picton's Monument ; 2.07 ft. above surface. Page 576 of the abstract: LinkExternal link

Close=up: SN4019 : Ordnance Survey Benchmark - Carmarthen, Picton's Monument
Creative Commons Licence [Some Rights Reserved]   © Copyright N Scott and licensed for reuse under this Creative Commons Licence.
1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
+
1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
TIP: Click the map for Large scale mapping
Change to interactive Map >
Grid Square
SN4019, 166 images   (more nearby )
Photographer
  (find more nearby)
Date Taken
Tuesday, 8 October, 2013   (more nearby)
Submitted
Friday, 11 October, 2013
Geographical Context
Historic sites and artefacts  Public buildings and spaces  City, Town centre 
Primary Subject of Photo
Benchmark 
Image Buckets ?
Wideangle  Informative 
Subject Location
OSGB36: geotagged! SN 4027 1995 [10m precision]
WGS84: 51:51.3131N 4:19.2434W
Camera Location
OSGB36: geotagged! SN 4027 1995
View Direction
SOUTH (about 180 degrees)
Looking for a postcode? Try this pageExternal link
Clickable map
+

Other Tags
OS  BM  Cut Mark  Benchmark  3rd Order  Wall  Monument  1GL 

Click a tag, to view other nearby images.

Image classification(about): Supplemental image
This page has been viewed about 21 times.
View this location: KML (Google Earth) · Google MapsExternal link · Bing MapsExternal link · OS Map Checksheet · Geograph Map · geotagged! More Links for this image
NW N NE
W Go E
SW S SE
[Mark
You are not logged in login | register