Based in the North Wales region of Scotland.
SH29 is within the post town of Holyhead, Anglesey.
The square is within Sir Ynys Mon - Isle of Anglesey council.
The SH29 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 SH29, 157 are land and -57 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 | 53.376122 | -4.713111 | 220000 | 390000 |
| South East Corner | 53.376122 | -4.557239 | 230000 | 390000 |
| North West Corner | 53.469232 | -4.713111 | 220000 | 400000 |
| North East Corner | 53.469232 | -4.557239 | 230000 | 400000 |