Probus Club of Bridlington Chairman Len Collins welcomed all members to our Monthly Lunch at The Expanse Hotel. Following a pleasant lunch, he introduced the Speaker Roger Osborne, who was to take us on a Geological Journey down the East Coast. He called it the Dinosaur Coast, and told how the layers of rocks, which can be clearly seen, reveal the secrets of the past. From Teeside to Holderness the rocks are stacked in layers sloping to the South. This exposes the changing rocks, from mudstone to chalk. The landscape depends on the make-up of the minerals, and a great example of the formidable defence provided by Ironstone topped cliffs is Saltburn. As you move further south the formations have become more vulnerable with the large deposits of mud being washed away, leaving low cliffs and inlets. When his talk reached Whitby we were in more familiar territory, and Roger explained that the character of Whitby to Robins Hoods Bay, like many areas, was caused by geological faults. The jet resources, with the many fossils, are a result of this. Moving quickly south, and mentioning the coastline of Whitby, Scarborough and Filey, the speaker found friends talking about the huge chalk Bempton Cliffs and the Speeton Clay. The chalk of Flamborough was put to good use in building the old Lighthouse. Danes Dyke is a great example of the glacial mud finding it's way back to the sea, exposing the valley formed by the original dramatic march of the glacier during the last Ice Age. The Ice Age had a dramatic effect on the whole area, preventing the inland rivers from reaching the sea, but when the ice melted, leaving huge lakes which made their own ways east leaving the landscape we see today. Hornsea Mere is a marvellous example of the water not finding a way back to the sea. Roger has had a book published called 'The Dinosaur Coast' and this is a pocket guide to this whole area. This talk could barely scratch the surface of a huge story within the time allowed, but Chairman Len expressed the appreciation of the members present.