Chad Peters,

Mike Harp,



The Western US is the largest metal producing region in the United States and remains one of the most prospective jurisdictions for continued discovery in North America. Despite difficult market conditions between 2012-2018, many companies have successfully advanced their projects from discovery through development, emphasizing robust economics and margin instead of growth. Here we showcase a selection of successful development stories, focusing on the evolution of the geologic model through drilling and the subsequent hurdles faced as each project transitioned from advanced exploration to mine development.