This report contains three main sections: 1) description of Exploration and Geological Services Division, mining and exploration overview, and overview of Mineral deposits of the northern Cordillera; 2) technical reports by government and contributing geologists on the geology of Yukon mineral deposits and mineral districts under active investigation; and 3) descriptions of mineral properties and mineral claims staked in 1983 and summaries of assessment work undertaken by exploration companies to obtain assessment credits.