The current USACE denied mine plan is uneconomic. Until a Feasibility Study releases demonstrated proven/probable "ore" reserves based from some mine plan, the rest is conversation.
The USACE, EPA, SCOTUS, Alaska and stakeholder proceedings and discussions do not make a resource economic to develop. Even IF there were no regulatory impedances, the facts of economics and perpetual liability remain.
Underground mining is the only hope as developed by a real mining company.
20-years. $1 billion spent.
Nothing.