The Neolithic was a period of prolific activity for the South Downs in Sussex, when enclosures and monuments were being built, ditches cut, large areas cleared and flint was extracted from the ground. This study features one of the last, great unpublished excavation archives relating to fieldwork conducted on the Neolithic monuments of the South Downs, carried out by John Henry Pull in the 1920s-50s. It includes reports from four major areas of flint mining (Blackpatch, Church Hill, Cissbury and Tolmere), largely based on contemporary records and accounts, with comments and observations from Miles Russell. The specialist reports and studies of artefact assemblages are to be published in a separate report.