Great Lakes Commission United States Geological Survey 20070123 Ann Arbor, MI Great Lakes Information Network (GLIN) http://gis.glin.net/ogc/services.php#gl_8_unit_huc This file contains Hydrologic Unit boundaries and codes for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of Hydrologic Unit Code (HUC) boundaries at HUC2 to HUC12 levels compiled from U.S. Geological Survey (USGS) National Hydrography Dataset (NHD) and U.S. Department of Agricultural (USDA) National Resources Conservation Services (NRCS) Watershed Boundary Dataset (WBD) sources. This data is intended primarily for geographic display and analysis of regional and national data, and can also be used for illustration purposes at intermediate or small scales (1:250,000 to 1:2,000,000). Summary: US Great Lakes Basins 8 Unit HUCS unknown See dataset specific metadata. In work In work -93.208054 -73.623726 48.112640 40.399723 ISO 19115 Topic Category inlandWaters Uncontrolled Keywords US Great Lakes None These data were digitized and edited from best available sources at a scales ranging from 1:24,000, or better, up to 1:2,000,000. This data is not intended to be the authoritative source for hyrologic units, but only as a reference to NHD data that has some interdependecies with hydrologic unit delineation for reach code assignments. Shapefile Richard Garcia Great Lakes Commission Mailing and Physical

734-971-9135 rgarcia@glc.org WMS-based PNG preview of dataset at full extent PNG GNU/Linux i686 i386 Great Lakes Commission United States Geological Survey unknown 2009-12-30T11:38:14-04:00 Richard Garcia Great Lakes Commission Mailing and Physical

734-971-9135 rgarcia@glc.org FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 Pete Giencke Great Lakes Commission Lead Systems Developer Mailing and Physical

2805 S. Industrial Hwy, Suite 100

Ann Arbor MI 48104 (734) 971-9135 x132 (734) 971 - 9150 pgiencke@glc.org gl_8_unit_huc Disclaimer. The Great Lakes Commission (GLC) and the Great Lakes Information Network (GLIN) cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. The Great Lakes Commission (GLC) and the Great Lakes Information Network (GLIN) make no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. Shapefile US Great Lakes Basins 8 Unit HUCS Shapefile compressed with GNU zip GNU/Linux i686 i386 GML US Great Lakes Basins 8 Unit HUCS Geographic Markup Language (GML) compressed with GNU zip GNU/Linux i686 i386 SVG US Great Lakes Basins 8 Unit HUCS No compression applied GNU/Linux i686 i386 PDF US Great Lakes Basins 8 Unit HUCS No compression applied GNU/Linux i686 i386 none GCS_WGS_84 Decimal Degrees 0.01757812 0.01757812