In praise of "Geology Viewer"

This is another amazing web site which I have referred to before -- it's a free service from BGS -- available just by clicking on either of the links below:

http://maps.bgs.ac.uk/geologyviewer_google/googleviewer.html

http://www.bgs.ac.uk/discoveringGeology/geologyOfBritain/viewer.html

You just need to click on the Geology Map viewer, and you can see either the satellite imagery of Britain (zoom in as close as you like), or a location map, or a composite image that incorporates the geology map at a maximum scale of 1:50,000.  That's satisfactory for most purposes.  Also, you can put your cursor on any point of interest and a label will come up which gives you the name of the geological formation at that point.

Thoroughly recommended.