Eoin H. Macdonald ME, FIEAust CP Eng has an international career spanning 65 years as a consulting mining engineer and is highly regarded for his previously published work on alluvial mining technology. As Australian Special Advisor to CCOP (Committee for Co-ordination of Joint Prospecting for Mineral Resources in Asian Offshore Areas) in the ESCAP (Economic and Social Commission for Asia and the Pacific) programme of the United Nations Development Programme, he cooperated with Special Advisors from the USA, UK, France, Germany, the Netherlands, Japan, Canada and Australia in the search for and appraisal of surficial and nearshore deposits globally along the continental shelves. This… resulted in a bi-annual series of international training courses on gold prospecting and evaluation with the author as Director of Studies. He has advised on alluvial gold projects associated with exploration, mining, treatment and evaluation worldwide, including Australia, New Zealand, South Korea, Papua New Guinea, and extensively throughout the Americas, Africa, the Indian sub-continent and South East Asia.