Buttenfield, Barbara2014-01-022014-01-022013-11-20http://www.gis.ku.edu/gisday/2013/https://hdl.handle.net/1808/12618Professor of Geography, University of Colorado-Boulderen-USGIS DayThrough the Looking Glass: Designing a Multi-Scale National Hydrographic DatabasePresentationhttps://orcid.org/0000-0001-5961-5809openAccess