The federal government recently announced its intention to establish a national marine conservation area (NMCA) in northwestern Lake Superior. Encompassing 3,861 square miles, the proposed conservation area would consist of both protected zones and multiple-use areas in which activities such as commercial fishing and shipping could continue. Generally, exploration or exploitation of hydrocarbons, minerals, aggregates or other inorganic matter is prohibited in an NMCA, and disposing of substances in an NMCA is prohibited without a licence. For more information, please see