More than 50 geology, archaeology and natural history enthusiasts attended a very successful conference on Saturday 13 July in memory of John Catt who died in December 2017 and was the contributing editor of our best-selling publication Hertfordshire Geology and Landscape.

The audience at the University of Hertfordshire's Bayfordbury campus enjoyed a programme of ten presentations ranging from the intricate application of science and technology to age of shoreline deposits found at Little Heath in the Chilterns to the incidence of sinkholes and crown holes in Hertfordshire and the impact of the Ice Age in re-shaping and directing the River Stort. The collection and use of Puddingstone to grind corn in Roman Britain also featured.

The event, attended by Prof. Catt's widow Diana, was organised by Hertfordshire Geology Society in association with HNHS, East Herts Geology Club, Bedfordshire Geology Group and the Geologists Association.  It was followed on Sunday by a field expedition visiting sites of geological and archaeological interest along the Dunstable Downs chalk escarpment.