This book explains to the hillwalker, in easy to understand but accurate terms, how geology has shaped the landscape of Snowdonia. A selection of thirteen guided walks are used to illustrate this in terms of what can be seen on the ground.This book, divided into two parts, is intended to help those who love Snowdonia's mountain scenery to understand how this haunting landscape came about. The first half narrates the story of colliding continents, volcanoes, mountain-building and glaciations in creating Snowdonia, explaining why volcanoes occurred, the rocks they created and how to interpret signs of mountain-building and glaciations on the ground. The second half describes several recommended walks, of differing levels of difficulty, but all with a wide variety of geological features to be seen and, most important, enjoying consistently fantastic views of the very best of Snowdonia's wonderful scenery.The author has concentrated on what you can see as you walk around the hills, pointing to conspicuous, easily seen features in rocks and the overall shape of the terrain in accounting for the present day landscape.
Paul Gannon is science and technology writer and author with an interest in two areas: information technology and codebreaking; and the geology and scenery of Britain's top hillwalking areas. "My professional background is in information technology, but I've always been fascinated by the forces of natural world as well as of human ingenuity. I currently live in North Wales, an area which offers a great environment for a writer, though I have also lived and worked in London, South Wales, the Hague and Brussels at various times", says Paul.
"My books on British codebreaking during the first and second world wars are based on research in the National Archives, using files that have only recently been opened to public view." The full story of these amazing achievements is still shrouded in secrecy, but we do now have a much better view of what happened than ever before. These two books reveal how British codebreaking has wrongly been promoted as an amateur effort that just managed to achieve success. The books show how it developed into a highly efficient industrial operation.
"Even in the first world war, the codebreakers were devising how to use machines in their complex mental tasks", says Paul. "The story of Room 40, MI1(b) and GC&CS (Government Code & Cipher School) is much richer and more impressive than the official legends allow for. Sure there was bungling and error, but there was also incredible foresight, dogged determination and sheer brilliance - and plenty of room for eccentricity."
"Colossus in particular involves some complex sections on codebreaking, but these are books for the general as well as the specialist reader. My work as a writer has been about trying to explain complex technical or scientific concepts in plan English. I hope I have achieved that in the codebreaking books and also my books on geology and scenery of popular hillwalking areas. Walking the hills plays an important role in my writing and I have written a lot on geo-sciences as a journalist. The Rock Trails series was born out of this experience. There is a fantastic story to be told about geology and scenery - just as there is about British codebreaking - and I've tried to tell that story in a way that the ordinary landscape lover will appreciate."