The author has provided a major compilation of data relating to all aspects of watershed functioning and management in the middle mountains of Nepal. This includes climatological, hydrological, soil science, sediment transfer, and socio economic data. It embraces is own research during a 5-year secondment to ICIMOD together ith the accumulation of a vast array of data from across the entire region of the Hindu Kush–Himalayas, and their analysis. There are numerous sketch maps, graphs, low diagrams, and data tables (233 Figures and 175 Tables), probably exceeding by far any comparable ompendium.The author’s primary concern is focused on two small watersheds that have been intensely studied over many years as part of ICIMOD’s People and Resource Dynamics in Mountain Watersheds of the HK–H (PARDYP) Project. A series of models is developed and applied in the larger regional context.