77. All work concerning prospecting, exploration, valorization and determining economic feasibility and all work of research done on a claim or on contiguous lands under mining lease, mining concession, exploration permit or special permit shall constitute required work with a view to obtaining or renewing a development licence.
1965 (1st sess.), c. 34, s. 80; 1970, c. 27, s. 20; 1981, c. 23, s. 29.