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Table 1 <br /> Geological Hydrogeologic Characteristics <br /> May Day Idaho Mine Complex <br /> La Plata County,Colorado <br /> Formation General Description Porosity Transmissivity <br /> Morrison Formation Mudstone with fine 0-10% (Freeze and Low in the upper <br /> grained interbedded Cherry, 1979) Morrison. Low to <br /> sandstone.The medium in the lower <br /> Morrison sliale has Morrison(Gloyn, <br /> confining layers, while 1995). <br /> the lower Morrison <br /> sandstones are aquifers. <br /> Highly fractured- <br /> a rox 200 feet thick <br /> Junction Creek Fine to coarse grained Average porosity is Above average <br /> Sandstone eolian sandstone. less than 1%(Trautner, permeabilities and <br /> Approximately 100- 2011)(Appendix 1) porosities <br /> 150 thick-major calcite <br /> veins with ore minerals <br /> Wanakah marl Fine grained sandstone Very low to low Very low to low except <br /> mudstone and marl in areas of fracture and <br /> faults(Gloyn, 1995 <br /> Wanakah- Pony Laminated micritic and Very low to low Very low to low <br /> Express Limestone algal limestone-host to (Gloyn, 1995)except in <br /> replacement minerals, areas of fracture and <br /> ore bearing veins and faults. <br /> mineralized <br /> h drother anal breccia <br /> Entrada Formation Fine to coarse Porosity ranges from 2 Very low to low <br /> sandstone-eolian to 12.1%.Low (Gloyn, 1995).No <br /> approximately 200-250 porosity due to major flows have been <br /> feet thick-contains calcium carbonate observed underground <br /> stock work breccia and cement(Trautner, from this formation <br /> veins-primary ore 2011)(Appendix 1) <br /> target <br /> Dolores Formation Shale and siltstone with 0-10% (Freeze and Variable generally low. <br /> interbedded sands and Cherry, 1979) <br /> conglomerates-2,000 <br /> to 2,500 feet thick. A <br /> secondary ore target in <br /> some locations <br /> Wildcat Mining Corporation <br /> M-1981-185 <br />