2008-04-15_REVISION - M1980244 (303)

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• he rSR Group VIEW SHED ANALYSES The TSR Group provided view-shed analysis from three key viewpoints in Cripple Creek (Attachments 1, 2 and 3) and one viewpoint in Victor (Attachment 4) to accurately depict mining features associated with the proposed Cresson Mine Life Extension ("MLE") project, and those features that could be seen from each location. View-sheds mathematically computes what can be seen from any given point based on contour data. The TSR Group used the same engineering contour data Cripple Creek & Victor Gold Mining Company ("CC&V") uses for planning mine operations. Other than transformation to State Plane coordinates, the contour data is unchanged The view-shed analyses exhibits (provided as Attachments 1-4) show (2) overlapping view sheds: 1.) Existing (in red), and 2.) Build-Out (in blue). When these view sheds overlay each other they render purple which represents all the terrain that will remain unchanged and can be seen from that view point. Red colored areas are visible areas that will be removed and impacted. Blue colored areas are new grading formations you will be able to see from that same vantage point (usually a change in skyline). The terrain is the same in all 4 exhibits; the only change between them is • the vantage point. All exhibits were provided in PDF file format suitable for large format printing. PHOTO-SIMULATION RENDERINGS Photo-simulations are photo realistic renderings that utilize a 3D model basis to represent changes in the terrain at different stages of mine completion. An accurate 3D model is created using engineering data provided by CC&V's Engineering, Planning, and Operations groups; this model represents the terrain changes at different stages of the mining project. The TSR group collects photography from specific known locations that can be identified in the model or captured using GPS and then translated to the correct coordinates in the model. This allows TSR to accurately locate a camera position in the 3D model. A model of the existing terrain is used to align the 3D model 'camera' to the view of the photograph. This process is often referred to as 'view-matching' and essentially replicates the geometric conditions of the photograph with a 'camera' in the 3D software. Once the view is'matched', new elements and terrain can be substituted which accurately depict changes a viewer would see from that location. The 3D software exports images which must be combined and overlaid on the original digital photograph in a photo- editing software program. The composites from the 3D model ensure that the shape and proportion of the changes are all consistent with each other and with the actual view in the photography. Once all the composites are made, The TSR Group adds texture and color from the original image or other source images to render a realistic and believable view. In this case (2) stages of the project were rendered: 1.) the grading for the full build-out of .7 810 Brickyard Circle Unit 4„ Golden, Colorado 80403 303.458.8554 888.458.8554 303.295.0664 fax www.theTSRgroup.com