Nat River Iron Formation
The Nat River Iron Formation is a 12 km long magnetic, geological unit on the eastern half of Rogue's property, approximately 8 km east of Radio Hill. In 1959, six diamond core holes were started at Nat River with five being completed for a total of 1,235 m. Drilling was concentrated in the vicinity of the middle target zone on Nat River as seen in Figure 1 above. The amount of information collected was not enough to report a mineral resource, however, Gerson reports a 'potential' of 30 million long tons per 100 feet of depth in reference to this 2,500 foot section along the formation. That estimate uses the five drill holes along with the magnetometer work completed on the property during 1959. During this time the company did not own all the ground and was therefore unable to test the iron potential of the nose fold of the formation to the southwest.
An airborne VTEM and mag survey was conducted on the entire 12,000 hectare property in 2008 by Geotech Ltd. The survey defines the formation rather definitively. The thicker parts of the formation have not been drill tested and are an exploration priority for as the Company assembles its Nat River exploration program. Aside from the airborne survey the Nat River Formation has not seen any iron exploration work since 1959.
Because of its strike length the Nat River Iron Formation has potential for additional tonnage and could augment future resources and mill feed at Radio Hill.