Construction of the high speed railway line officially got under way in September 2020 although ‘enabling works’ have been going on for several years. Using a mixture of maps, pictures, visualisations and, most importantly, aerial photographs this talk will show the impact at a number of locations across the Colne Valley Regional Park and the Chilterns. The talk will last for about 60 minutes with plenty of time for questions and discussion. This is the first of a series of…