Adam Watson, BSc, PhD, DSc, DUniv, was born 1930 in Aberdeenshire, Scotland. Lifelong interests in snow began in 1937, the Cairngorms in 1939. While a student, he used the first part of summer vacations to climb in the far north and the second as a deer-stalking gillie. As a mountaineer and ski-mountaineer since boyhood, he experienced Scotland, Iceland, mainland Canada and Baffin Island on foot and ski, and climbed in many other countries, especially Norway. In 1954 he seconded Tom Patey on most rock routes in the Cairngorms for the Scottish Mountaineering Club’s climbers’ guide. In 1954 he became an SMC member and since 1968 author of the Club’s Cairngorms District Guide. In 1971 he was Chief Expert Witness to the Crown in the Cairngorm Disaster Fatal Accident Inquiry, and for many years independent scientific monitor at Scottish downhill ski areas. His main research was on population biology, behaviour and habitats of northern birds and mammals, on which he contributed hundreds of scientific publications. In 1971 he was promoted to Senior Principal Scientific Officer for Special Merit in Research. Since 1990 as a retired ecologist, he continued fieldwork and scientific papers and in 2010 a book COOL BRITANNIA. A Fellow of the Arctic Institute of North America, Centre for Ecology and Hydrology, Royal Meteorological Society, Royal Society of Edinburgh, and Society of Biology, he is an Emeritus Member of the Ecological Society of America. He likes walking with his English pointer dog Henry and being in the hills and watching wildlife.