URS - Sacramento Office 3 January 2000 vector digital data http://www.edwards.af.mil CORR_BND_Area.txt The coverage corr_bnd contains corridor boundary polygons of the Black Mountain Supersonic Corridor and the Alpha/Precision Impact Range Area. These boundaries were constructed from corridor border coordinates defined in the Edwards Air Force Base AFFTC Instruction 11-1, published 3 January 2000. This GIS dataset supplements the Update of the Environmental Assessment for Continued Operations in the Black Mountain Supersonic Corridor and the Alpha/Precision Impact Range Area. The coverage was created as a basemap layer for display of the corridor boundaries. See Process Step Below for Procedures used en 3 January 2000 publication date Complete None planned -119.190055 -114.637257 35.584323 34.654147 None Supersonic Corridor boundaries MEAR32 None Black Mountain Supersonic Corridor, Alpha/Precision Impact Range Area None None None 2000 This dataset is property of EAFB. EAFB controls all access constraints. Suitable for mapping and analysis of the Black Mountain Supersonic Corridor and the Alpha/Precision Impact Range Area corridor geometry. Nominal scale of the data is 1:24,000 or larger. URS - Sacramento Nathan Lowry GIS Specialist mailing and physical address

10389 Old Placerville Road

Sacramento CA 95827 USA (916) 857-7389 (916) 362-2318 Nathan_Lowry@URSCORP.com 9:00am to 5:00 PM M-F Edwards Air Force Base, Flying Operations, Aircrew Operations Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800 Text File See Entity_Attribute_Information See Explanation Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section. This dataset has been confirmed to contain all route description points for the named routes. Point locations are as reported in AFFTC Instruction 11-1. 100 ft. Resolution as reported Edwards Air Force Base, Flying Operations, Aircrew Operations 3 January 2000 diagram 24000 Text Procedures_Used: The latitude and longitude coordinates and other corridor attribute information were key entered from AFFTC Instruction 11-1 into a Microsoft Access database. Latitude and Longitude were then converted to decimal degree format and exported to ArcInfo UNGENERATE format. The GENERATE command was used in ArcInfo to create the corridor description point coverage, which was subsequently converted to EAFB format projection. The remaining attributes from the Access database were then converted to Info format and joined to the Corr_pts coverage PAT. The EAFB_X and EAFB_Y fields were then exported from ArcInfo and added to the Microsoft Access Database. The GENERATE command was used in ArcInfo to create the corridor boundaries defined in the AFFTC Instruction 11-1. Additional points defining the intersections of the corridor boundaries and US Highway 395 were determined from the corridor boundaries and TIGER derived road-centerline spatial data produced by GDT and distributed by ESRI. Attributes from the Tbl_corridors table in Access were exported to Info format and joined to the coverage feature table. Once the corridor boundaries were created, corridor attributes were joined to the feature attribute table. Revisions: No revisions are planned for this dataset Reviews_Applied_to_Data: Once completed, the Microsoft Access Database information was checked against the hardcopy information in AFFTC Instruction 11-1. Any errors were identified and corrected. Quality assurance procedures were implemented during development of this dataset to assure that included locational and attribute information are consistent with the source data. Related_Spatial_and_Tabular_Data_Sets: Corr_bnd is related to corr_pts (corridor Description Points), corr_cen (corridor center lines), corr_under (500 foot buffer of corridor center lines), and corr_near (2 NM buffer of corr_bnd). Metadata imported.C:\DOCUME~1\Heimer\LOCALS~1\Temp\xml4F.tmp2003122914235700 Vector G-polygon 4 Entity point 0 GT-polygon composed of chains 4 Point 4 Composite object 3 State Plane Coordinate System 405 34.033333 35.466667 -118.000000 33.500000 6561666.666667 1640416.666667 coordinate pair 0.002048 0.002048 survey feet North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 AGL= Above Ground Level, MSL = Mean Sea Level, FL = Flight Level, NoLim = No Upper Limit CORR_BND_Area FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. AREA PERIMETER CORR_BND_ CORR_BND_I LENGTH CORR_BND# CORR_BND-ID $ID $FROMNODE $TONODE $LEFTPOLYGON $RIGHTPOLYGON corr_bnd.pat FID SHAPE AREA PERIMETER CORR_BND# CORR_BND-ID corr_bnd.patcorridor Attributes of corridor boundary polygons ArcInfo FID SHAPE AREA Area of poly/region in square coverage units Computed Positive real numbers PERIMETER Perimeter of poly/region in coverage units Computed Positive real numbers CORRIDOR# Internal feature number Computed Sequential unique positive integer CORRIDOR-ID User-assigned feature number User-defined Integer NAME Name of corridor (equal to corr_bnd.Name)uteCline.Name) Text ORIG_ACT Originating activity, entity that owns the corridor Text, mixed case SCHED_ACT Scheduling activity, entity responsible for scheduling the corridor Text, mixed case CONTACT Any additional agencies that must be contacted regarding flight operations Text INFO_TYPE INFO_TF INFO_DESC All attributes are stored in the region attribute table, PATCORRIDORBUFF. A summary of the attributes is included in the data dictionary. Not Available URS - Sacramento Nathan Lowry GIS Specialist mailing and physical address

10389 Old Placerville Road

Sacramento CA 95827 USA 916-857-7389 916-362-2318 Nathan_Lowry@URSCORP.com 9:00am to 5:00 PM M-F Update Environmental Assessment for Continued Operations in the Black Mountain Supersonic Corridor and the Alpha/Precision Impact Range Area - GIS Update This dataset was modeled from specifications described in the IFR/VFR workplan (July 1999). 0.125 This data is Edwards AFB property and cannot be distributed without permission. Software capable of reading Arc/Info 8.0 coverages 2000 2000 20040204 URS - Sacramento Nathan Lowry GIS Specialist mailing and physical address

10389 Old Placerville Road

Sacramento CA 95827 USA (916) 857-7389 (916) 362-2318 Nathan_Lowry@URSCORP.com 9:00am to 5:00 PM M-F FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time enhttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile {8AA9D449-37C0-49AC-96CF-3C69C87B8DDC}2003122914235700FALSE20040204101822002004020410182200Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800CORR_BND_Area.txtISO 19115 Geographic Information - MetadataDIS_ESRI1.0dataset002Text File20040204