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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />d7QW <br /> <br />Aerial Photograph/GIS Analysis and Field Studies <br />of the Grand Valley and Ruby-Horsethief Canyon of <br />the Colorado River <br /> <br />by: <br />Mark M. Van Steeter <br />John Pitlick <br />Bob Cress <br /> <br />Department of Geography <br />University of Colorado <br />Boulder, Colorado 80309 <br /> <br />June, 1995 <br />