Based in the Highlands and Islands region of Scotland.
The NC40 10 square kilometre grid intersects with the settlement of Rosehall.
NC40 is within the post towns of Ardgay, Ross-shire & Lairg, Sutherland.
The square is within Highland council.
The NC40 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 NC40, 429 are land and -329 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 | 57.960421 | -4.712697 | 240000 | 900000 | 
| South East Corner | 57.960421 | -4.537094 | 250000 | 900000 | 
| North West Corner | 58.053634 | -4.712697 | 240000 | 910000 | 
| North East Corner | 58.053634 | -4.537094 | 250000 | 910000 |