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there is definitively no need for additional support methods other than designed and presented pillars herein. Conclusions Minor exfoliation fractures along the surface of the highwall are observable and small scale debris liberated from such areas as the result of freeze and thaw of winter precipitation is routinely scaled from the highwall each spring. Debris from freeze thaw conditions does not pose a threat as it is managed annually by the Operator and is continually assessed. Exfoliation fractures are annually monitored and have been in existence on site since the beginning of mining as declared by the Operator based on family oral tradition. A lack of movement over a nearly 100-year period of continuous mining lends to the interpretation that exfoliation fractures are structurally sound contingent on an absence of drill and blast mining techniques along the underground mining and processing areas. Additional fractures within the underground workings as well as along the exposed highwall also do not pose a threat of collapse for multiple reasons. The fractures are oriented such that in the very unlikely case that failure would occur, wedges of rock bodies would move `into' the rock mass as fracture dips are oriented towards one another and not away. A wedge that tapers down would be the result of movement and would fit snugly within the intact Silver Plume granitic batholith of the hill being quarried. Fractures and joints also do not show significant water seepage with the exception of the fractures that extend to the exposed face of the highwall where precipitation events readily wet these day-lighted surface fractures. The orientation of surface highwall fractures are dominantly north-south or sub to such orientations and are perpendicular to the direction of opening and are of high angles. If failure along these surface fractures was to occur, liberated rock masses would experience minimal to no actual movement as masses settled into a new subsided position parallel to the fracture orientation. Lastly, the dominantly exclusive majority of fractures seen along the underground workings highwall do not penetrate further than 20 feet into the underground workings of the mine and do not appear to extend upwards towards the top of the mined hill. Therefore, especially when considering drill and blast mining, increased fracturing Rose Red Quarry Geotechnical Report 19 t"M I „„k,and AsW,,,PIA