Harley Lacy, experienced Mine Closure practitioner (from Mine Closure Management Services, Australia) has worked in a number of countries in this field, and was a editor of the 2016 MINE CLOSURE Leading Practice manual, published by the Australian Government, has given two lectures entitled “Mine Closure in Australia. History, Development and Progress” and “Mine Landforms and Environmental Management. Progress within the Pilbara and Goldfields of West Australia” at a Seminar that had 40 master students in the conference room, belonging to different countries and 12 more people related with RIBERMINE, since the lectures were broadcasted on streaming.