USGS 08302012 vector digital data Data Series DS-719 Reston, Virginia U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?streamgagebasins USGS 09172012 vector digital data DS DS-719 Reston, VA U.S. Geologic Survey http://water.usgs.gov/lookup/getspatial?streamgages This dataset represents 19,031 basin boundaries and their streamgage locations for the U.S. Geological Survey's (USGS) active and historical streamgages from the published dataset of Stewart and others (2006) and its subsequent updates (D.W. Stewart, USGS, written commun., 2011). Only the basin boundaries that were delineated within 15 percent of the basin area reported in the National Water Information System (NWIS) were included in this dataset. This dataset only includes streamgage basins in the lower 48 states and not in Alaska, Hawaii, or Puerto Rico. The basin boundaries and streamgage locations are provided in 18 shapefiles separated by 2-digit Hydrologic Unit Code. The USGS streamgage station's identification number attached to each delineated polygon can be linked to the attribute data found in Stewart and others (2006). The delineated watersheds were made from digital elevation models found in the NHDPlus data suite (version 1, 2006) and based on gage locations provided by Stewart and others (2006). These basins have been used in several USGS studies such as James Falcone's "GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow" (2011) and Xiaodong Jian and others, "WaterWatch-Maps, Graphs, and Tables of Current, Recent, and Past Streamflow Conditions " (2008). The purpose of this dataset is to provide watershed boundaries for USGS active and historical streamgages using the NHD version 2002 medium resolution (1:100,000-scale). This dataset can also be used to facilitate hydrologic analysis and modeling. 2011 publication date Complete As needed -73.905846 -66.010949 48.632201 40.158460 None inlandwaters basins streamgage watersheds NHDPlus None These basins have been used in several USGS studies such as James Falcone's "GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow" (2011) and Xiaodong Jian and others "WaterWatch-Maps, Graphs, and Tables of Current, Recent, and Past Streamflow Conditions " (2008). The USGS shall not be held liable for improper or incorrect use of these data, based on the description of appropriate/inappropriate uses described in this metadata document. It is strongly recommended that these data be directly acquired from the distributor and not indirectly through other sources that may have changed the data in some way. These data should not be used at scales greater than 1:24,000 for the purpose of identifying hydrographic watershed boundary feature locations. The USGS makes no claims for the data's suitability for other purposes. The USGS should be acknowledged as the data source in products derived from these data. The dataset is public information and may be interpreted by all organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application of the data. Files are dated, and users are responsible for obtaining the latest version of the data from the source distributor. Basin boundaries are based on the published locations of "USGS Streamgages Linked to the Medium Resolution NHD" (Stewart and others, 2006). Michael E. Wieczorek U.S. Geological Survey, Maryland-Delaware Water Science Center Geographer mailing and physical address

5522 Research Park Drive

Baltimore MD 21228 USA 443-498-5550 443-498-5510 mewieczo@usgs.gov http://water.usgs.gov/GIS/browse/Gage_Basins.jpg Illustration of data set jpg Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.1.3000 Falcone, James 20111012 vector digital data Reston, Virginia U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?gagesII_Sept2011 Jian, Xiaodong Wolock, David Lins, Harry 2008 document Fact Sheet 2008-3031 Reston, VA U.S. Geological Survey None None USEPA, Horizon Systems Corporation 2006 raster digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/nhdplus/ digital raster data 2011 publication date NHDPlus Version 1 The source data provided digital elevation models for watershed processing. Stewart, David W. Rea, Alan, Wolock, David M. 2006 vector digital data Data Series DS-195 Reston, VA U.S. Geological Survey http://water.usgs.gov/GIS/metadata/usgswrd/XML/streamgages.xml digital data 2006 publication date streamgages The source data provided the locations of USGS stream gages. Basins were delineated only for gages where the entire watershed resides totally within an NHDPlus Production Unit. The NHDPlus Version 1 data make up 51 Production Units for the raster components (elevation, flow direction, and flow accumulation grids). Watersheds were delineated using the ArcInfo WATERSHED function, which uses flow-direction grids. The following code was used to delineate basins for the USGS streamgage coverage. /* Mike Wieczorek modified 12/19/05 /* aml to delineate basins at usgs GAGES ON NHDPlus REACHES by STATE /*Open Cursor /* NHDGAGES is the coverage found at /* <http://water.usgs.gov/GIS/metadata/usgswrd/XML/streamgages.xml> (Stewart and others, 2006) /* SITESTATUS, ST and Site_NO are items found in the streamgage coverage /* SITESTATUS "A" active gage, "I" inactive gage /* ST is 2 letter Postal abbrev for state /* SITE_No is the numeric USGS gage number identifier /* Prod_No is the NHDPlus Production Unit number /* Prod_Txt is the NHDPlus Production Unit text letter /* ArcInfo on the coverage of ProductionUnits found at /* <http://www.horizon-systems.com/nhdplus/data.php> (USEPA, 2006) /* FLowDirection GRIDs (FDR) are found at /* <http://www.horizon-systems.com/nhdplus/data.php> (USEPA, 2006) &ARGS ST CURSOR NHD DECLARE GAGES2011.PAT INFO # CURSOR NHD OPEN &do &while %:NHD.aml$next% &S ST = [value :NHD.STATE_NM] &S STAID = [value :NHD.SITENUM] &S PU_NO = [value :NHD.PROD_NO] &S PU_TXT = [value :NHD.PROD_TXT] W U:\BASINWORK\%ST%\A &if [exists U:\BASINWORK\%ST%\A\G%STAID% -grid] &then kill G%STAID% all &if [exists U:\BASINWORK\%ST%\A\W%STAID% -grid] &then kill W%STAID% all &if [exists U:\BASINWORK\%ST%\A\P%STAID% -COVER] &then kill P%STAID% all &if [exists U:\BASINWORK\%ST%\A\B%STAID% -COVER] &then kill B%STAID% all reselect U:\BASINWORK\GAGES2011 P%STAID% POINT # POINT;RES SITENUM = [QUOTE %STAID%];;N;N grid DBMSSET HASH OFF mape P%STAID% setwindow P%STAID% /* grid point for pour point of watershed is made 60 meters to capture /*the flow-direction grid cell of 30 meters in either direction of point setcell 60 G%STAID% = pointgrid(P%STAID%) setmask N:\NHDPlus\NHDPlus\NHDPlus%PU_NO%\FAC_FDR_Unit_%PU_TXT%\FDR setwindow N:\NHDPlus\NHDPlus\NHDPlus%PU_NO%\FAC_FDR_Unit_%PU_TXT%\FDR mape N:\NHDPlus\NHDPlus\NHDPlus%PU_NO%\FAC_FDR_Unit_%PU_TXT%\FDR setcell N:\NHDPlus\NHDPlus\NHDPlus%PU_NO%\FAC_FDR_Unit_%PU_TXT%\FDR W%STAID% = watershed(N:\NHDPlus\NHDPlus\NHDPlus%PU_NO%\FAC_FDR_Unit_%PU_TXT%\FDR, G%STAID%) B%STAID% = GRIDPOLY(W%STAID%) DBMSSET HASH ON Q additem B%STAID%.PAT B%STAID%.PAT SITENO 15 15 C &DATA ARC INFO arc SEL B%STAID%.VAT MOVE [QUOTE %STAID%] TO SITENO Q STOP &END KILL G%STAID% ALL KILL P%STAID% ALL KILL W%STAID% ALL W U:\BASINWORK copy U:\BASINWORK\%ST%\A\B%STAID% &DATA ARC INFO arc SEL GAGES2011.PAT RESELECT SITENUM = [QUOTE %STAID%] MOVE [QUOTE %STAID%] TO SITE_NO relate B%STAID%.PAT 1 by SITE_NO CALC ESTAREA = ( $1AREA * 0.0000003861 ) * -1 MOVE 'Y' TO DONE Q STOP &end KILL B%STAID% ALL cursor NHD next &end cursor NHD close cursor NHD remove 2009 Michael E. Wieczorek U.S. Geological Survey, Maryland-Delaware Water Science Center Geographer mailing and physical address

5522 Research Park Drive

Baltimore MD 21228 USA 443-498-5550 443-498-5510 mewieczo@usgs.gov Metadata imported. C:\Users\mewieczo\AppData\Local\Temp\1\xmlBDDC.tmp 20120814 13541000 Metadata imported. C:\Users\mewieczo\AppData\Local\Temp\2\xml811D.tmp 20120914 13420700 Vector G-polygon 622 Albers Conical Equal Area 29.500000 45.500000 -96.000000 23.000000 0.000000 0.000000 coordinate pair 1.000000 1.000000 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 basinsXX Shapefile of USGS streamgage basins separated out by USGS 2-digit Hydrologic Unit Code (XX) USGS FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. SHAPE Feature geometry. ESRI Coordinates defining the features. SITE_NO USGS site number of surface-water gage. USGS USGS streamgage identification number. SHAPE_Length Length of feature in internal units. ESRI Positive real numbers that are automatically generated. SHAPE_Area Area of feature in square meters. ESRI Positive real numbers that are automatically generated. SQMI Area of delineated basin in square miles. USGS 0 414429 square miles ABS_DIFF Absolute percentage difference in the delineated area and NWIS reported area for each basin. USGS 0 1 percentage gagesXX Streamgage locations for delineated basins separated out by 2-digit HUC code. USGS FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. SHAPE Feature geometry. ESRI Coordinates defining the features. SITE_NO USGS site number of surface-water gage. USGS USGS steramgage identification number. STATION_NM USGS site name of surface-water gage. USGS USGS streamgage name. REG 2-digit USGS Hydrologic Code that the surface-water gage is located in. USGS USGS 2-digit Hydrologic Unit Code MasterList.csv Master List of USGS surface-water station IDs included in this dataset. USGS SITE_NO USGS streamgage Identification number. USGS Identification number assigned by USGS. STATION_NM USGS streamgage descriptive name. USGS USGS streamgage descriptive name. REG USGS 2-digit Hydrologic Unit Code. USGS USGS 2-digit Hydrologic Unit Code. SQMI Square miles of delineated basin. USGS miles squared ABS_DIFF Absolute percent difference between USGS National Water Information System's reported area and delineated basin's calculated square miles. USGS 0 15 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston Virginia 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Downloadable Data Although this dataset has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. shp Full coverage zipped 1450 KB http://water.usgs.gov/GIS/dsdl/basins01.zip shp Full coverage zipped 2876 KB http://water.usgs.gov/GIS/dsdl/basins02.zip shp Full coverage zipped 5621 KB http://water.usgs.gov/GIS/dsdl/basins03.zip shp Full coverage zipped 3031 KB http://water.usgs.gov/GIS/dsdl/basins04.zip shp Full coverage zipped 2853 KB http://water.usgs.gov/GIS/dsdl/basins05.zip shp Full coverage zipped 1256 KB http://water.usgs.gov/GIS/dsdl/basins06.zip shp Full coverage zipped 1112 KB http://water.usgs.gov/GIS/dsdl/basins07.zip shp Full coverage zipped 712KB http://water.usgs.gov/GIS/dsdl/basins08.zip shp Full coverage zipped 1450 KB http://water.usgs.gov/GIS/dsdl/basins09.zip shp Full coverage zipped 2876 KB http://water.usgs.gov/GIS/dsdl/basins10.zip shp Full coverage zipped 5621 KB http://water.usgs.gov/GIS/dsdl/basins11.zip shp Full coverage zipped 3031 KB http://water.usgs.gov/GIS/dsdl/basins12.zip shp Full coverage zipped 2853 KB http://water.usgs.gov/GIS/dsdl/basins13.zip shp Full coverage zipped 1256 KB http://water.usgs.gov/GIS/dsdl/basins14.zip shp Full coverage zipped 1112 KB http://water.usgs.gov/GIS/dsdl/basins15.zip shp Full coverage zipped 712KB http://water.usgs.gov/GIS/dsdl/basins16.zip shp Full coverage zipped 1112 KB http://water.usgs.gov/GIS/dsdl/basins17.zip shp Full coverage zipped 712KB http://water.usgs.gov/GIS/dsdl/basins18.zip shp Full coverage zipped 1450 KB http://water.usgs.gov/GIS/dsdl/gages01.zip shp Full coverage zipped 2876 KB http://water.usgs.gov/GIS/dsdl/gages02.zip shp Full coverage zipped 5621 KB http://water.usgs.gov/GIS/dsdl/gages03.zip shp Full coverage zipped 3031 KB http://water.usgs.gov/GIS/dsdl/gages04.zip shp Full coverage zipped 2853 KB http://water.usgs.gov/GIS/dsdl/gages05.zip shp Full coverage zipped 1256 KB http://water.usgs.gov/GIS/dsdl/gages06.zip shp Full coverage zipped 1112 KB http://water.usgs.gov/GIS/dsdl/gages07.zip shp Full coverage zipped 712KB http://water.usgs.gov/GIS/dsdl/gages08.zip shp Full coverage zipped 1450 KB http://water.usgs.gov/GIS/dsdl/gages09.zip shp Full coverage zipped 2876 KB http://water.usgs.gov/GIS/dsdl/gages10.zip shp Full coverage zipped 5621 KB http://water.usgs.gov/GIS/dsdl/gages11.zip shp Full coverage zipped 3031 KB http://water.usgs.gov/GIS/dsdl/gages12.zip shp Full coverage zipped 2853 KB http://water.usgs.gov/GIS/dsdl/gages13.zip shp Full coverage zipped 1256 KB http://water.usgs.gov/GIS/dsdl/gages14.zip shp Full coverage zipped 1112 KB http://water.usgs.gov/GIS/dsdl/gages15.zip shp Full coverage zipped 712KB http://water.usgs.gov/GIS/dsdl/gages16.zip shp Full coverage zipped 1112 KB http://water.usgs.gov/GIS/dsdl/gages17.zip shp Full coverage zipped 712KB http://water.usgs.gov/GIS/dsdl/gages18.zip comma separated values (csv) and excel (xlsx) Full coverage zipped 712KB http://water.usgs.gov/GIS/dsdl/MasterList.zip None. This dataset is provided by the USGS as a public service. 20100817 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston Virginia 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+streamgagebasins FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998