Choosing a Map
OS Map Symbols
4 Figure OSGB Grid References
6 Figure OSGB Grid References
How GPS and GLONASS works
Useful Links
Mapping Resources

Source | Description | RSS Feed |
---|---|---|
Accuracy and precision | a discussion of this topic | |
Coordinate transformation tool | The Coordinate Transformation Tool transforms GNSS based ETRS89 latitude and longitude or cartesian XYZ coordinates to the equivalent OSGB36 National Grid eastings and northings, and vice-versa, using Ordnance Survey's National Grid Transformation OSTN15. | |
Geology of Britain viewer | helps you explore the geology around where you live. | |
Geology onshore digital maps (DiGMapGB) | digital geological maps of Great Britain based on the different series of published BGS geological maps. | |
Global Positioning System | a history of the development of the GPS | |
GPS Reviews | a review of GPS hardware and the science | |
iGeology | British Geological Survey - Interactive geological mapping of the UK | |
iGeology3D | British Geological Survey - shows the geology of the rocks around you as a 3D view; requires iGeology preloaded | |
MAGIC | authoritative geographic information about the natural environment from across government | |
mySoil | British Geological Survey - lets you take a soil properties map of Britain and Europe with you wherever you go and with your phone's GPS you'll know exactly where you are. | |
Old Maps Online | history and heritage of old maps | |
Old-Maps | historical map archive comprising site centred historical maps covering England, Wales and Scotland. | |
OSTN15 OSGM15 transformation software | transforms between the ETRS89 (WGS84) and OSGB36 National Grid coordinate systems using the transformation models (OSTN15/OSGM15). | |
Soilscapes | a 1:250,000 scale, simplified soils dataset covering England and Wales | |
Tidal Information | tide prediction tables are to be found on the Admiralty EasyTide Tide prediction web site |