National Park Service, Devils Tower National Monument, Resource Management Office 200212 vector digital data A point shapefile of the benchmarks in Devils Tower National Monument created from GPS data. To show the location of the benchmarks in Devils Tower National Monument. The intended use of all data in a park's GIS library is to support diverse park activities including planning, management, maintenance, research and interpretation. 1998 1999 publication date Complete None planned -104.720644 -104.720019 44.590749 44.579102 None benchmark survey points None Devils Tower National Monument DETO Wyoming USA US United States United States of America North America NPS National Park Service Crook County National Park System Unit Code ThesaurusDETO National Park System Unit Name ThesaurusDevils Tower National Monument National Park Service Theme Category ThesaurusOther ISO 19115 Topic CategoryEnvironmentLocation None none National Park Service, Intermountain GIS Program Office GIS Coordinator/GIS Specialist Mailing and physical address

12795 West Alameda Parkway

Lakewood Colorado 80225 USA imro_gis_coordinator@nps.gov Thumbnail sketch of data with legend JPEG http://nrdata.nps.gov/deto/detodata/deto_benchmk.jpg Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.2.0.700 http://nrdata.nps.gov/deto/detodata/deto_benchmk.xml National Park Service, Devils Tower National Monument, Resource Management Office 200212 vector digital data Data collection was streamlined through use of a data dictionary attribute menu installed in the Global Positioning System (GPS) data logger. This procedure enhances attribute accuracy by reducing attribute related decision-making in the field and minimizing keying errors. Park staff have ground checked and verified all features. GIS personnel have verified all features and attributes. There are no duplicate features. The data are complete for the area defined. The data were collected according to an accuracy standard of maintaining a maximum PDOP (Position Dilution of Precision) of 6, while tracking a minimum of 4 SV (satellite vehicles). These data were differentially corrected and have estimated accuracies in the X and Y direction of +/- 2 to 5 meters using the above standards while SA (selective availability) is set to zero. No tests were done to confirm this. In Trimble Pathfinder Office software, accuracy is not represented. Instead, line and area precision is an estimation of the positional error (closeness to truth). To estimate precisions, it uses: receiver type (for noise), baseline length, Dilution of Precision, covariance and reference variance components. It is a repeatability measure not an accuracy measure. Horizontal Precision for line and area features looks at all the individual points that make up the line/area feature and a mean value is computed. National Park Service Unknown 2400 digital data 1998 1999 ground condition GPS Used to determined coordinates of the benchmarks in the park. The theme was added to a data dictionary attribute menu for use in the GPS data logger. GPS based coordinates were collected at Devils Tower National Monument on a Trimble Geoexplorer GPS receiver in datum WGS84, UTM zone 13 coordinates. A maximum Position Dilution of Precision (PDOP) of 6 was maintained for each set while tracking a minimum of 4 satellite vehicles. GPS 1998-1999 Data were exported from datalogger into Pathfinder Office software. Pathfinder Office was then used to import the data into a ArcInfo coverage format. 1998-1999 Coverage converted to ArcView shapefile. 20021127 National Park Service, Devils Tower National Monument, Resource Management Office Chief, Resource Management mailing address

P.O. Box 10

Devils Tower WY 82714 USA 307-467-5283 Devils Tower National Monument Area Vector Entity point 2 Universal Transverse Mercator 13 0.999600 -105.000000 0.000000 500000.000000 0.000000 coordinate pair .61 .61 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 benchmarks.dbf feature attribute table ESRI FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. FEATURE name of feature user defined Benchmark benchmark survey points user defined none National Park Service, Intermountain GIS Program Office GIS Coordinator/GIS Specialist Mailing and physical address

12795 West Alameda Parkway

Lakewood Colorado 80225 USA imro_gis_coordinator@nps.gov deto_benchmk.zip The National Park Service shall not be held liable for improper use of the data described and/or contained herein. These data and related graphics (GIF format files) are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data. The National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data be directly acquired from an NPS server and not indirectly through other sources, which may have changed the data in some way. Although these data have been processed successfully on a computer system at the National Park Service, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. Winzip version 8.0 Compression applied 0.016 http://nrdata.nps.gov/deto/detodata/deto_benchmk.zip http://www.nps.gov/gis/park_gisdata/wyoming/wy.htm None National Park Service, Devils Tower National Monument, Resource Management Office Chief, Resource Management mailing address

P.O. Box 10

Devils Tower WY 82714 USA 307-467-5283 8:00 a.m. to 4:00 p.m. Monday through Friday FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time None None http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile 20050602 20040524 NPS CSDGM OnlineData Park DETO National Park Service, Intermountain GIS Program Office Paul Voris GIS Specialist Mailing and physical address

12795 West Alameda Parkway

Lakewood Colorado 80225 USA paul_voris@nps.gov NR-GIS Other 19678