Based in the North East English Region & South Scotland region of Scotland.
NT81 is within the post towns of Alnwick, Northumberland, Kelso, Roxburghshire, Morpeth, Northumberland & Wooler, Northumberland.
The square is within Northumberland & Scottish Borders councils.
The NT81 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 NT81, 431 are land and -331 are sea. Sea squares are disregarded on this site as they contain no land features.
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Corner | Latitude | Longitude | Easting | Northing |
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South West Corner | 55.383560 | -2.317942 | 380000 | 610000 |
South East Corner | 55.383560 | -2.159392 | 390000 | 610000 |
North West Corner | 55.473721 | -2.317942 | 380000 | 620000 |
North East Corner | 55.473721 | -2.159392 | 390000 | 620000 |