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SN71
Based in the Mid and West Wales region of Scotland & South Wales West region of Scotland.
The SN71 10 square kilometre grid intersects with the settlements of Brynamman,Cefn-bryn-brain,Cwm-twrch Isaf,Cwm-twrch Uchaf,Cwmgors,Cwmllynfell,Gorof,Gwaun-Cae-Gurwen,Pen-Rhiw-fawr,Rhosaman,Tairgwaith,Y Gurnos,Ystradgynlais & Ystradowen.
SN71
SN71 is within the post towns of Ammanford, Carmarthenshire, Llangadog, Carmarthenshire & Swansea, Glamorgan.
The square is within Castell-nedd Port Talbot - Neath Port Talbot, Powys - Powys & Sir Gaerfyrddin - Carmarthenshire councils.
The SN71 national grid square measures 10 km by 10 km and has an area of 1,000 kilometres squared.
The technical term for a 10 km map square is a Hectad.
When this 10 km square is divided into a grid 10 by 10 it gives the next size of grid square. This unit is called a Monad and measures 1km square. 100 monads fit in a 10km square.
Out of the monads generated from square SN71, 452 are land and -352 are sea. Sea squares are disregarded on this site as they contain no land features.
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| Corner | Latitude | Longitude | Easting | Northing |
|---|---|---|---|---|
| South West Corner | 51.773537 | -3.889356 | 270000 | 210000 |
| South East Corner | 51.773537 | -3.740734 | 280000 | 210000 |
| North West Corner | 51.865640 | -3.889356 | 270000 | 220000 |
| North East Corner | 51.865640 | -3.740734 | 280000 | 220000 |