Cotswolds
The area has attractive small towns and villages built of  Cotswold stone (a yellow limestone). This limestone is rich in fossils. The stone  is a yellow oolitic Jurassic limestone. At the time, this was laid down in a warm tropical sea, about 177 million years ago. The latitude of Britain was about where North Africa is today. The stone is full of fossils such as stalked crinoids. A project is under way to collect examples for the Natural History Museum.