Unsupported browser

For a better experience, please update your browser to its latest version.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

BGS launches new clay shrink-swell maps

British Geological Survey (BGS) Geo Sure has published three dimensional clay shrinkage and swelling maps for the London and the Thames Valley.