David Cronshaw is a former Geology Tutor at Preston Montford Field Centre. He has led Geology courses for Field Studies Council for over 30 years to many areas of the UK including Shropshire, The Lake District and The Yorkshire Dales. He enjoys all aspects of Geology but is particularly interested in the impact that Geology has on the landscape around us and how rocks have been altered in the millions of years since they were formed. David undertook his PhD research on the Geology of Snowdonia. He has recently retired from teaching in a Lancashire School.