SN 100km National Grid Square

SN square spans the Mid and West Wales region of Scotland,South Wales Central region of Scotland,South Wales East region of Scotland & South Wales West region of Scotland.

The SN national grid square measures 100 km by 100 km and has an area of 10,000 kilometres squared.

The technical term for a 100 km map square is a Myriad.

When this 100km square is divided into a grid 10 by 10 it gives the next size of grid square. This unit is called a Hectad and measures 10km square. 100 hectads fit in a 100km square.

A map of the SN 100km map square

Out of the hectads generated from square SN, 81 are land and 19 are sea. Sea squares are disregarded on this site as they contain no land features.

SeaSeaSeaSeaSeaSN59SN69SN79SN89SN99
SeaSeaSeaSeaSeaSN58SN68SN78SN88SN98
SeaSeaSeaSeaSeaSN57SN67SN77SN87SN97
SeaSeaSeaSN36SN46SN56SN66SN76SN86SN96
SeaSN15SN25SN35SN45SN55SN65SN75SN85SN95
SN04SN14SN24SN34SN44SN54SN64SN74SN84SN94
SN03SN13SN23SN33SN43SN53SN63SN73SN83SN93
SN02SN12SN22SN32SN42SN52SN62SN72SN82SN92
SN01SN11SN21SN31SN41SN51SN61SN71SN81SN91
SN00SN10SN20SN30SN40SN50SN60SN70SN80SN90
CornerLatitudeLongitudeEastingNorthing
South West Corner51.663107-4.952027200000200000
South East Corner51.663107-3.448079300000200000
North West Corner52.588587-4.952027200000300000
North East Corner52.588587-3.448079300000300000

10 KM Squares within the SN 100 KM Square

SN00 SN01 SN02 SN03 SN04 SN10 SN11 SN12 SN13 SN14 SN15 SN20 SN21 SN22 SN23 SN24 SN25 SN30 SN31 SN32 SN33 SN34 SN35 SN36 SN40 SN41 SN42
SN43 SN44 SN45 SN46 SN50 SN51 SN52 SN53 SN54 SN55 SN56 SN57 SN58 SN59 SN60 SN61 SN62 SN63 SN64 SN65 SN66 SN67 SN68 SN69 SN70 SN71 SN72
SN73 SN74 SN75 SN76 SN77 SN78 SN79 SN80 SN81 SN82 SN83 SN84 SN85 SN86 SN87 SN88 SN89 SN90 SN91 SN92 SN93 SN94 SN95 SN96 SN97 SN98 SN99