Description: <div style="text-align:Left;"><p>The Carleton College trails data is created and maintained by the GIS Lab in collaboration with Arboretum Director. Trail center lines are derived from various sources, including high-resolution aerial photos, GPS/GNSS positions with post-processing or averaging, and the 2013 campus survey CAD drawing. Topology errors (gaps, overlaps, dangling points) are fixed on 3/20/2014. Surface types and permitted uses are updated in March 2015. See field "Sources" for sources of individual trail locations.</p></div>
Copyright Text: Carleton College Cowling Arboretum, Carleton College Environmental Studies GIS Lab,