In the 40% area that is sufficiently covered, a whole slew of criteria and different tools or methods were used to produce the geoscience knowledge of that area. It could be geophysical surveys. It could be geological maps drawn from field surveying. It could be geochemical information. Dr. Gray discussed the different types of geochemical information. It could be surveying and analyzing the rocks. It could be looking at specific minerals to date the rocks.
There is a whole bunch of information of that type that brings the geological context of that area to a level we would conclude is sufficient for industry to come in on their own to do more detailed work in a specific area. They will not literally dig deeper, but they will acquire more detailed information.