Curtis V. Price Naomi Nakagaki Kerie J. Hitt Rick M. Clawges 20070401 1.0 vector digital data USGS Digital Data Series 240 Reston, VA U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?ds240_landuse_tilepoly Curtis V. Price Naomi Nakagaki Kerie J. Hitt Rick M. Clawges 20070401 1.0 map U.S. Geological Survey Data Series 240 Reston, VA U.S. Geological Survey USGS form reference: Price, C.V., Nakagaki, N., Hitt, K.J., and Clawges, R.C., 2006, Enhanced Historical Land-Use and Land-Cover Data Sets of the U.S. Geological Survey, U.S. Geological Survey Digital Data Series 240. [digital data set] http://pubs.usgs.gov/ds/2006/240 http://pubs.usgs.gov/ds/2006/240/ This polygon data set documents the spatial extent of polygon files included in a release of enhanced U.S. Geological Survey historical land-use and land-cover data. These polygon features should be used to identify land-use and land-cover data sets included in this release of USGS historical land-use and land-cover data. This data set is released as part of an enhanced version of previously published USGS land-use and land-cover data, edited to perform attribute and geographic corrections, recast to the North American Horizontal Datum of 1983, and reformatted to the commonly used geospatial data file formats. DISCLAIMERS Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology. Although these data have 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. 20050102 publication date Complete None planned -160.497286 -65.999375 61.999559 18.497497 None land landuse landcover GIRAS LULC digital geographic inlandWaters None United States USA none none U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

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Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds240_landuse_tilepoly http://water.usgs.gov/GIS/browse/ds240_landuse_tilepoly.png Illustration of the data set. PNG None Unclassified None Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 USEPA 1994 vector digital data Washington, DC, USA U.S. Environmental Protection Agency http://www.epa.gov/waterscience/BASINS/metadata/giras.htm James R. Anderson, Ernest E. Hardy, John T. Roach, and Richard E. Witmer 1976 Reston, Virginia U.S. Geological Survey http://landcover.usgs.gov U.S. Geological Survey 1990 Reston, Virginia U.S. Geological Survey http://landcover.usgs.gov Polygon consistency checked in ArcInfo. (No overlaps or seams present.) Visually checked against land use and land cover data sets. USEPA 1994 vector digital data Washington, DC, USA U.S. Environmental Protection Agency http://www.epa.gov/ngispgm3/spdata/EPAGIRAS/ 250000 digital data 1994 publication date epagiras Polygon boundaries for land and land cover quadrangle tiles Downloaded index coverage from the EPA GIRAS FTP site, and did edits to make it align with data set tiles. Edits required included modification of edge locations for a few mapsheets and addition of tile polygons for Alaska and Hawaii. Projected results to NAD83 coordinates. Note: the mapsheet boundaries are NAD27 mapsheet boundaries, so they do not exactly line of with NAD83 latitude and longitude lines. epagiras 20050102 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

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Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+Dataset+ds240_landuse_tile_poly Vector G-polygon 471 Label point 471 GT-polygon composed of chains 471 Point 10 0.000001 0.000001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 tilepoly polygon attribute table 1:250:000 quad tiling scheme used by EPA in their release of USGS land use and land cover data in ArcInfo EXPORT format FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. TILE Tile code Extracted from the EPA quad code in most cases, in a few defined from the latitude and longitude of the lower right corner of the polygon. The form used is GAABBB where AA is the north latitude and BBB is the west longitude. Mapsheet tile code of the form GAABBB (see Attribute Definition Source) QUADNAME Tile name Derived from map sheet names in GIRAS land use and land cover digital data files USGS 1:250,000 quadrangle names EPANAME EPA quad name "epagiras" land use and land cover tile names (see Source_Information or Cross_Reference metadata elements.) Defined by EPA in their data distribution (see source epagiras in the Source_Information) SRCEFILE Notes describing GIRAS data files used for each 1:250,000 land use and land cover data tile free text free text LATMIN minimum latitude Calculated from GIRAS file header (registration points), in decimal degrees, NAD27 18.875 61 Degrees .000001 LATMAX maximum latitude Calculated from GIRAS file header (registration points), in decimal degrees, NAD27 19.5 62 Degrees .000001 LONMIN minimum longitude Calculated from GIRAS file header (registration points), in decimal degrees, NAD27 -157.333328 -68.0000 Degrees .000001 LONMAX maximum longitude Calculated from GIRAS file header (registration points), in decimal degrees, NAD27 -156.699997 -66 Degrees .000001 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

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Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Downloadable Data Although this data set 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 this 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. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, this metadata file may include some vendor-specific terminology. ESRI Shapefile Polygon features stored as a collection of binary files. ZIP-format archive 10 KB http://water.usgs.gov/GIS/dsdl/ds240/polygon/tilepoly.zip None. This dataset is provided by USGS as a public service. 20070401 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

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Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds240_landuse_tilepoly FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998