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2. Geology <br />Since the geology of the mine area is important to various sections of this permit, it has been <br />decided to place this information in this Introduction section. <br />The Revenue Mine consists of an underground mine running across several mineralized veins <br />located within the San Juan- Uncompahgre caldera complex. The uplift and collapse of these <br />calderas led to the development of the complex fracture system that has facilitated the mineral <br />deposits that have supplied the silver mining historic to the Silverton area. The Figures 5 and 6 from <br />Geology of the Revenue Area show these caldera and fracture structures. Figure 7 of that report <br />shows the stratigraphic section of the old Revenue - Virginius Mine that coincides with the modern <br />Revenue Mine. <br />Revenue Mine August 2012 i - <br />