Alison Sheridan, eminent Neolithic expert and friend of ACFA, following the death of Lionel Masters undertook to bring his work at the early Neolithic cairns of Lochill and Slewcairn to publication. She and other colleagues have produced this interim account/report of the excavations which you can read here. ACFA is indebted to her, her colleagues and funders, all noted in the paper, for their support in recognising Lionel’s work on these important sites in Dumfries and Galloway.