Denis has over 40 years’ experience in the minerals Exploration Industry. Principally this includes the exploration for low sulfidation gold-silver deposits and porphyry copper deposits. Initially he spent 3 years at ASARCO’s Mission open pit copper mine south of Tucson, Arizona prior to graduate school. Thereafter, Denis worked for 17 years in Mexico first as mine Geologist, then District Geologist at the Tayoltita underground Ag-Au mine. In 1995, Denis became country manager in Mexico for Santa Fe Pacific Gold Inc. Over the past 20 years he has been involved in reconnaissance and project exploration in Argentina, First as Country Manager for Minera Andes Inc. (McEwen). Work with Minera Andes included the San Jose Ag-Au deposit prior to its being joint ventured. Denis was integral in locating and initiating the definition of the buried higher grade enriched blanket at the Los Azules porphyry copper Deposit. Denis was previously the VP Exploration for Atala Resources, Inc of which he is also a co-founder. Denis was appointed Chairman of Magna Terra Minerals Inc. in February 2017. Denis has a Bachelor of Science Degree in Engineering Geology (1962) and a Master of Science in Economic Geology and Petrology (1972) from the University of Arizona.