Smivs writes: "Now you can find out what's under your feet by using the British Geological Survey's (BGS) new OpenGeoscience portal. It allows the public to study all the UK's rocks on a simple Google map, down to a scale of 1:50,000. Toggling the map shows overlying towns and streets. A range of educational and professional tools are also brought together on the website, including the huge national geological archive of photographs. The BBC report that Tens of thousands of images have been amassed into the BGS library over the decades, showing different rock forms around Britain, fossil types, and the impact on the landscape of natural events such as flooding. The whole archive is now searchable and free to use for non-commercial purposes. Those who live in Edinburgh, for example, can see how their city is built on top of an ancient volcano. Glaswegians on the other hand will notice that their city is built on the remains of an ancient tropical forest, evident in the coal measures and fossil trees that can be seen today."