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A parameter that would be very useful to add to the model would be a consideration of <br />the age and depths of the various soils and fills in the Elk River area. This would allow for <br />consideration of potentially deeply buried sites, eroded sites, and natural site disturbance. <br />Using such a parameter requires extensive geomorphologic research beyond the scope of <br />this study. <br />Model Weighting: Two different base models have been created. The first, a general, <br />all -periods model does not consider vegetation types, as these remain unclear for periods <br />prior to A.D. 300. The second model includes a consideration of ecotones, but is valid only <br />for periods post A.D. 300. <br />General Model <br />Parameter <br />Weight <br />Proximity to River <br />30% i <br />Proximity to Lake <br />20% <br />Proximity to Stream <br />20% <br />I Slope <br />e <br />15% <br />__ <br />Hilltop <br />15% <br />Post A.D. 300 Model <br />? Parameter Weight <br />Proximity to River 30% <br />Proximity to Lake ( —� 20%� <br />Proximity to Stream 10% <br />s <br />Slope f 15%`__._..__1 <br />a Hilltop 15% <br />Proximity to Ecotones I 10% <br />Removal of Developed Areas: As the goal of this model is to provide a useful basis <br />for preservation and project planning, the final version of the model has classified all heavily <br />24 <br />