This report presents on the main findings drawn from an FAO-organised workshop on the application of MASSMUS (mapping systems and services for multiple uses) in the Shanxi province (14-23 June 2010). With a focus on the Fenhe irrigation district, the report provides interesting insight into the application of MASSMUS and uncovers new facets in MUS by incorporating discussions in urban ecosystems and the watering of recreational parks. It validates the importance of MUS in contributing to district revenues, and highlights MUS as a practise integrated in the formal operational management of the irrigation's district. A second MASSMUS workshop is planned to take place in South China in September.