Mark Edmonds also teaches for the UHI having recently retired as a lecturer in archaeology at York. He specialises in flint artefacts and prehistoric landscapes.John Barnatt has worked in the Peak District for five decades, as a survey archaeologist for the National Park since 1989, carrying out survey, excavation and assessment reports of many monuments and other sites here. One of his long-standing passions has been reaching understandings of the region’s prehistory.