RE:RE:RE:All Systems go!The news is very encouraging but the 58N zone is underground and in a totally different area so it couldn't possibly be permitted. You would class it as brownfield exploration. Apologies if you already know this....
https://www.undervaluedequity.com/Mineral-Exploration-Companies-Greenfield-Exploration-vs.-Brownfield-Exploration.html
It is from last January but there is more details about 58N here:
https://www.detourgold.com/investors-centre/News-Releases/news-Release-Details/2017/Detour-Gold-Reports-on-2016-Exploration-Program/default.aspx
G Mining Services Inc., an independent engineering firm, has now completed a preliminary model and conceptual design for an advanced underground exploration program. The block model assumed a 3 metre minimum horizontal thickness and work is underway to evaluate the potential for wider mining areas. Based on the geological interpretation of the deposit as currently drilled, multiple lenses of potential ore were delineated from bedrock surface to a depth of approximately 800 metres. The deposit remains open below 800 metres.
The conceptual underground advanced exploration program consists of temporary surface infrastructure, a portal and a decline (sized at 5 x 5 metres), cross-cuts and ventilation development necessary to access the deposit for an eventual bulk sample. Diamond drilling would be undertaken from drill bays off the decline to allow for delineation drilling for the upper 400 metres and additional drilling at depth. The estimated cost of this program over a period of five years is expected to range between C$30 and C$50 million. The Company would require an advanced exploration permit to commence this program.
Conceptual advanced underground exploration development based on the current drilling information to date:
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On January 4, 2017, the Company started a surface infill drilling program of approximately 30,000 metres between 250 and 450 metres below surface with the objective of increasing the understanding of grade and geometry for that part of the deposit. Selected holes will also be drilled deeper to delineate continuity at depth.
The gold mineralized system (Zones 58N and 75) has been intersected over an east-west strike length of 450 metres, from surface to a depth of 800 metres. The mineralized system remains open at depth. Gold mineralization is mainly found within an altered feldspar porphyry intrusive characterized by brittle deformation, containing quartz and/or quartz-tourmaline veins with up to 5% pyrite and multiple occurrences of visible gold.