U.S. Dept. of Commerce, Bureau of Census and dataset modifications by Mr. Ed Yockey and John Pye, USDA Forest Service 2004 vector digital data Salt Lake City, UT USDA Forest Service file name: su-south.shp <http: //www.srs.fs.usda.gov/sustain/data/> This coverage was created by merging the fcounty100.shp shapefile of county boundaries in the Southern U.S. with county assignments to Forest Inventory and Analysis survey units based on data from http://ncrs2.fs.fed.us/4801/fiadb/fiadb_documentation/fiadb_appendixc.htm, then dissolving to those assignments. This shapefile is used as a base map for a variety of applications. The included survey units in the shapefile cover the following states: AL, AR, FL, GA, KY, LA, MS, NC, OK, SC, TN, TX, and VA. Note however that FIA does not sample counties in central and western Texas and Oklahoma plus five parishes in southern Louisiana. These areas were dropped from the coverage. 2004 publication date Complete Unknown -97.104246 -74.773082 39.961157 23.957495 Forest Inventory and Analysis survey units boundaries biota FIA survey units in the southern United States Southern Forest Resource Assessment, SFRA None None. The USDA Forest Service does not guarantee the accuracy of this data. USDA-Forest Service Mr. John M. Pye Ecologist mailing and physical address

USDA Forest Service, SRS4851

3041 E. Cornwallis Rd.

Research Triangle Park NC 27709 USA (919).549.4013 jpye@fs.fed.us 1) USGS- the original county boundary coverage. 2) USDA Forest Service- modifications to data for use in the Southern Forest Resource Assessment (SFRA). Unclassified Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.3.0.800 All survey units are accurately labeled. Polygon topology is present. Assessment-standard projection: Projection: Albers Equal Area Units: Meters Spheroid: GRS80 Datum: NAD83 First Standard Parallel: 27 degrees 30 minutes Second Standard Parallel: 37 degrees 30 minutes Central Meridian: -90 degrees 00 minutes Latitude of Origin: 25 degrees 00 minutes False Easting: 0.0 False Northing: 0.0 All polygons have been reviewed for attribution accuracy. A visual quality control inspection has been performed to ensure completeness of assignment of counties to a survey unit. All linear delineations are within National Map Accuracy Standards. +/- 50.8 meters All linear delineations are within National Map Accuracy Standards. +/- 25 meters Mr. M. Negri, USGS 1990 Reston, Virginia USGS file: county100.e00.gz <ftp://nsdi.usgs.gov/> 1:100,000 Arc Info export coverage 2004-07-20 publication date USGS 1:100,000 Counties coverage This coverage was identified on the USGS Water Resources NSDI Node site at http://nsdi.usgs.gov. The coverage contains the counties boundaries of the continental United States. These boundaries were extracted from TIGER/line Precensus Files,1990 (please see below USGS_Procedures_Used referenced from USGS metadata). USGS_Procedures_Used: The data was extracted from Census TIGER/line files stored on 38 compact discs (CD) using the following four step procedure: 1) Copy the data off the TIGER/line CD onto magnetic disc of a Data General 6220 server. The data was copied on a per state basis under an individual directory. 2) Run the data through ARCTIGER.AML which goes as follows: /* ARCTIGER.AML - An aml that will extract county outer boundary lines from /* Census TIGER line files and MAPJOIN these lines to create a /* full state coverage of county lines. Directory must contain /* albers.prj Projection file. /* -------------------------------------------------------------------------- /* Read county list from a particular state and set # of iterations to the /* # of counties. &args stno state &setvar countycount [filelist /gis/%stno%[unquote '/*'] county.list -full -dir] &setvar fileunit [open county.list ostat -r] &do i = 1 &to %countycount% /* Read individual TIGER files. &setvar cty [locase [read %fileunit% rstat]] &setvar xyz [filelist %cty%/tgr* tigerfiles -full -file] &setvar filunit [open tigerfiles ostat -r] &sv fname [locase [read %filunit% rstat]] &sv statecounty [substr %fname% 16 5] /* Block TIGER file record 1 and perform SORTTIGER. &if [after %fname% .] = f21 &then &sys dd if=%fname% of=line%statecounty% ibs=228 obs=228 cbs=228 conv=unblock sorttiger 1 line%statecounty% lnsrt%statecounty% &sv fname [locase [read %filunit% rstat]] /* Block TIGER file record 2 and perform SORTTIGER. &if [after %fname% .] = f22 &then &sys dd if=%fname% of=shape%statecounty% ibs=208 obs=208 cbs=208 conv=unblock &sv cerr1 [close %filunit%] sorttiger 2 shape%statecounty% shpsrt%statecounty% /* Create ARC coverage from blocked and sorted TIGER files using the /* TIGERARC command. tigerarc precensus geo%statecounty% lnsrt%statecounty% shpsrt%statecounty% &sys rm line%statecounty% lnsrt%statecounty% shape%statecounty% ~ shpsrt%statecounty% build geo%statecounty% line /* Extract items geo%statecounty%-ID and SOURCE from geo%statecounty%.ACODE /* datafile and add to geo%statecounty%.AAT pullitems [translate geo%statecounty%].ACODE PULL [translate geo%statecounty%]-ID SOURCE END joinitem [translate geo%statecounty%].AAT PULL ~ [translate geo%statecounty%].AAT [translate geo%statecounty%]-ID ~ [translate geo%statecounty%]-ID ORDERED tables $kill PULL q stop /* Project geo%statecounty% into Albers equal area to create prj%statecounty%, /* BUILD with LINE, CLEAN with 10 10 POLY and extract outer boundary to create /* cov%statecounty%. project cover geo%statecounty% prj%statecounty% albers.prj build prj%statecounty% line clean prj%statecounty% gcl%statecounty% 10 10 poly reselect gcl%statecounty% cov%statecounty% line RESELECT LPOLY# = 1 OR RPOLY# = 1 [unquote ' '] n n build cov%statecounty% line build cov%statecounty% poly /* ADDITEM STATECTY and populate cov%statecounty%.PAT with %statecounty%, /* calculate cov%statecounty%-ID in the cov%statecounty%.AAT to equal SOURCE /* so pseudonodes can be deleted with UNSPLIT in ARCEDIT, then set all /* cov%statecounty%-ID's in cov%statecounty%.AAT to equal /* cov%statecounty%#. createlabels cov%statecounty% build cov%statecounty% poly additem [translate cov%statecounty%].PAT [translate cov%statecounty%].PAT ~ STATECTY 5 5 I tables select [translate cov%statecounty%].PAT reselect [translate cov%statecounty%]# GT 1 calc STATECTY = %statecounty% select [translate cov%statecounty%].AAT reselect SOURCE CN ' ' calc [translate cov%statecounty%]-ID = 0 aselect reselect SOURCE CN 'A' calc [translate cov%statecounty%]-ID = 1 aselect reselect SOURCE CN 'B' calc [translate cov%statecounty%]-ID = 2 aselect reselect SOURCE CN 'C' calc [translate cov%statecounty%]-ID = 3 aselect reselect SOURCE CN 'D' calc [translate cov%statecounty%]-ID = 4 aselect reselect SOURCE CN 'E' calc [translate cov%statecounty%]-ID = 5 aselect reselect SOURCE CN 'F' calc [translate cov%statecounty%]-ID = 6 aselect reselect SOURCE CN 'G' calc [translate cov%statecounty%]-ID = 7 q stop idedit cov%statecounty% line arcedit ec cov%statecounty% ef arcs select all unsplit save quit build cov%statecounty% line build cov%statecounty% poly tables select [translate cov%statecounty%].AAT calc [translate cov%statecounty%]-ID = [translate cov%statecounty%]# q stop idedit cov%statecounty% line kill geo%statecounty% all kill prj%statecounty% all kill gcl%statecounty% all &end &setvar cerr2 [close %fileunit%] &sys rm county.list &sys rm tigerfiles /* MAPJOIN the individual county coverages to form a full state coverage. &setvar covercount [filelist cov* covlist -cover -network] &setvar fileunit [open covlist ostat -r] mapjoin %state% net features &do i = 1 &to %covercount% &setvar cover [read %fileunit% rstat] %cover% &end end &sys rm covlist /* Set SOURCE codes equal to cover-ID so pseudonodes can be removed with /* UNSPLIT in ARCEDIT. tables select [translate %state%].AAT reselect SOURCE CN ' ' calc [translate %state%]-ID = 0 aselect reselect SOURCE CN 'A' calc [translate %state%]-ID = 1 aselect reselect SOURCE CN 'B' calc [translate %state%]-ID = 2 aselect reselect SOURCE CN 'C' calc [translate %state%]-ID = 3 aselect reselect SOURCE CN 'D' calc [translate %state%]-ID = 4 aselect reselect SOURCE CN 'E' calc [translate %state%]-ID = 5 aselect reselect SOURCE CN 'F' calc [translate %state%]-ID = 6 aselect reselect SOURCE CN 'G' calc [translate %state%]-ID = 7 q stop idedit %state% line arcedit ec %state% ef arcs select all unsplit save quit build %state% poly build %state% line /* Set cover-ID's back to equal cover#. tables select [translate %state%].AAT calc [translate %state%]-ID = [translate %state%]# q stop idedit %state% line /* Remove sliver polygons while retaining SOURCE codes. createlabels %state% 1001 build %state% poly pullitems [translate %state%].AAT PULL [translate %state%]-ID SOURCE END eliminate %state% el%state% # poly RESELECT [translate %state%]-ID > 1000 [unquote ' '] n n build el%state% line build el%state% poly kill %state% all rename el%state% %state% joinitem [translate %state%].AAT PULL [translate %state%].AAT ~ [translate %state%]-ID [translate %state%]-ID LINEAR tables $kill PULL q stop &return 3) Visually check the data for accuracy against the 1:2,000,000 county boundaries. When discrepancies occurred, the data was checked against USGS 1:100,000 quad maps. 4) Add data from counties which were missing from the TIGER/line CDs or that could not be converted on the Data General. This was performed by several methods. Each method is followed by a list of counties by STATECTY code in which the data was inserted by that method. a) Missing or non-convertible counties which were completely surrounded by county boundaries that did convert had a label added to their blank polygon which was tagged with the appropriate STATECTY code. Missing Counties: Alabama: 01009, 01013, 01025, 01051, 01053, 01071, 01093, 01121, 01125. Texas: 48105, 48107, 48109, 48155, 48157, 48159. Utah: 49019, 49027, 49033, 49045, 49053. Non-convertible Counties: California: 06001, 06017, 06025, 06049, 06095. Florida: 12105. Georgia: 13289, 13305. Louisiana: 22019, 22079, 22089. Maine: 23019. Minnesota: 27055, 27099. Nevada: 32031. New York: 36071. Texas: 48027, 48037, 48121, 48453. b) Non-convertible counties with a shoreline that were delineated by using the adjacent inland county boundaries and a shoreline obtained from the USGS 1:2,000,000 data set with a buffer to match the buffer of the adjacent Census shoreline. The shorelines of these counties have a SOURCE code in the .AAT file of 'X'. Alabama: 01097. California: 06037, 06073. Florida: 12009, 12071, 12099. Georgia: 13051. Louisiana: 22075. North Carolina: 37053. South Carolina: 45019. Texas: 48167, 48245, 48261. c) The following county boundaries were obtained by processing Census TIGER/line files obtained from the U.S. Environmental Protection Agency (The same procedures were used on this data): Alabama: 01027, 01035, 01037, 01059, 01073, 01095, 01099, 01115, 01123, 01129, 01133. Texas: 48101, 48103, 48153. Utah: 49023, 49025, 49037, 49043, 49047. d) The following county boundaries were obtained by processing Census TIGER/line files on an IBM RS6000: Florida: 12105. South Carolina: 45053. Texas: 48253. Revisions: Revision 1.1, 8/16/94. Made a coding change as discovered by EPA: 1. A New Mexico county polygon coded FIPS = 35006, La Paz should be FIPS = 35006, Cibola. Revision by Mark Negri, mnegri@usgs.gov, 703-648-5613 Process_Date 8/16/94 Reviews_Applied_to_Data: Post-processing data review performed as mentioned above by Mark Negri. Related_Spatial_and_Tabular_Data_Sets: Other_References_Cited: Lines with SOURCE code type 'X' were obtained by buffering USGS 1:2,000,000-scale digital map of counties, 1985. USDA Forest Service Modifications: Sept. & Oct.-2000: The coverages were downloaded by USDA Forest Service personnel on 22-Sep-2000 in compressed Arc Info Export format along with their associated metadata. The coverages were then reprojected to match Assessment standard geographic using the Arc Info PROJECT command, subsetted to the thirteen Southern states of the Assessment using Arc View's Theme Query tool and state FIPS code, then exported as shapefiles. 14-NOV-2000: In early November 2000 two problems were discovered with the two county coverages: 1. slivers were found associated with Virginia county boundaries, these were manually edited and removed 2. multiple records per county or municipality interfered with join operations and subsequent analyses, these were similarly identified and removed. Both operations were performed on the geographic-projected shapefiles and renamed as scty100 and scty2m. These have replaced the USGS county coverages on the Assessment web site. Shortly after these errors were corrected, two additional coverages were created from scty100 and scty2m to address problems specific to mapping and analysis of FIA data. Particularly relevant in Virginia, FIA aggregate forest information for most of the independent municipalities into one of the adjoining counties. To match this tabular data, a coverage was created which reflected FIA's incorporation into counties of the various municipalities. Some of the largest municipalities are still tracked separately by FIA, these polygons were retained. Additionally, counties in central and western Texas and Oklahoma where FIA does not collect data were dropped from the coverages. FIA also does not conduct surveys in several counties in coastal Louisiana and Florida but these were retained in the coverage. The coverages were saved as fcty100 and fcty2m. 2004-07-19 FIPS codes by FIA survey unit were copied and pasted from http://ncrs2.fs.fed.us/4801/fiadb/fiadb_documentation/fiadb_appendixc.htm into an Excel worksheet and then edited to retain state and survey unit identifiers with each county record. A synthetic code for state-survey unit combination was created, then the entire contents were exported to DBF format for spatial joining to the coverage fcty100, renamed to fcounty100, based on state-county FIPS code. ArcView 3.2's Geoprocessing Wizard was used to dissolve the county boundaries based on the state-survey unit code. Error checking was conducted using visual inspection for completeness of assignment, verifying any unassigned units with the source list from FIA. 19-JUL-2004 USDA-Forest Service Mr. Edwin Yockey GIS Specialist mailing address

PO Box 2680

Asheville NC 28801 USA (828).257.4857 (828).257.4856 eyockey@fs.fed.us Metadata imported. L:\forest\sfra\download_data\fia_county\albers\cnty100\fcounty.xml Vector G-polygon 58 Albers Conical Equal Area 27.500000 37.500000 -90.000000 25.000000 0.000000 0.000000 coordinate pair 0.004096 0.004096 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 su-south FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. STATE_SU a concatenation of the state FIPS code and the one-digit FIA survey unit number within that state USDA Forest Service SUM_AREA the summed areas of counties making up a survey unit Computed SU FIA survey unit number FIA web page <http://ncrs2.fs.fed.us/4801/fiadb/fiadb_documentation/fiadb_appendixc.htm> STATE state code FIPS POLYTYPE USDA-Forest Service Mr. John Pye Ecologist mailing and physical address

USDA Forest Service, SRS4851

3041 E. Cornwallis Rd.

Research Triangle Park NC 27709 USA (919).549.4013 jpye@fs.fed.us Downloadable Data Data Content and Use Disclaimer The USDA Forest Service, Southern Forest Resource Assessment or SFRA, provides data to users of digital geographic data. The USDA Forest Service is in no way condoning or endorsing the application of these data for any given purpose. It is the sole responsibility of the user to determine whether or not the data is suitable for the intended purpose. It is also the obligation of the user to apply the data in an appropriate and conscientious manner. The USDA Forest Service provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. Much of the USDA Forest Service data is based on and maintained with Arc Info and Arc View Software developed by the Environmental Systems Research Institute (ESRI). In addition, much of the information presented uses conventions and terms popularized by Arc Info and Arc View and their user community. USDA Forest Service in no way represents the interests of ESRI nor acts as an agent for them. .shp Arc View Shapefile Arc View FIA Counties within the continental United States zip file 2.562 20041118 USDA-Forest Service Mr. John Pye Ecologist mailing and physical address

USDA Forest Service, SRS4851

3041 E. Cornwallis Rd.

Research Triangle Park NC 27709 USA (919).549.4013 jpye@fs.fed.us FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time None None Unclassified http://www.srs.fs.usda.gov/econ http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile