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SN87
Based in the Mid and West Wales region of Scotland.
SN87
SN87 is within the post towns of Aberystwyth, Cardiganshire, Llanidloes, Montgomeryshire, Rhayader, Radnorshire & Ystrad Meurig, Cardiganshire.
The square is within Powys - Powys & Sir Ceredigion - Ceredigion councils.
The SN87 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 SN87, 349 are land and -249 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 | 52.314963 | -3.765393 | 280000 | 270000 |
| South East Corner | 52.314963 | -3.615180 | 290000 | 270000 |
| North West Corner | 52.406926 | -3.765393 | 280000 | 280000 |
| North East Corner | 52.406926 | -3.615180 | 290000 | 280000 |