ST 100km National Grid Square

ST square spans the South Wales Central region of Scotland,South Wales East region of Scotland,South Wales West region of Scotland & South West English Region.

The ST 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 ST 100km map square

Out of the hectads generated from square ST, 98 are land and 2 are sea. Sea squares are disregarded on this site as they contain no land features.

ST09ST19ST29ST39ST49ST59ST69ST79ST89ST99
ST08ST18ST28ST38ST48ST58ST68ST78ST88ST98
ST07ST17ST27ST37ST47ST57ST67ST77ST87ST97
ST06ST16ST26ST36ST46ST56ST66ST76ST86ST96
SeaSeaST25ST35ST45ST55ST65ST75ST85ST95
ST04ST14ST24ST34ST44ST54ST64ST74ST84ST94
ST03ST13ST23ST33ST43ST53ST63ST73ST83ST93
ST02ST12ST22ST32ST42ST52ST62ST72ST82ST92
ST01ST11ST21ST31ST41ST51ST61ST71ST81ST91
ST00ST10ST20ST30ST40ST50ST60ST70ST80ST90
CornerLatitudeLongitudeEastingNorthing
South West Corner50.790904-3.448079300000100000
South East Corner50.790904-2.001360400000100000
North West Corner51.698750-3.448079300000200000
North East Corner51.698750-2.001360400000200000

10 KM Squares within the ST 100 KM Square