Binational Features for the United States and Mexico Border Region

Metadata also available as

Metadata:


Identification_Information:

Citation:

Citation_Information:

Originator: USGS, Geography; USGS, Texas Mapping Partnership Office

Publication_Date: 2006

Title: Binational Features for the United States and Mexico Border Region

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: <http://borderhealth.cr.usgs.gov/>

Description:

Abstract:

This binational geographic names dataset was developed by the U.S. Geological Survey’s (USGS) Border Environmental Health Initiative (BEHI) (<http://borderhealth.cr.usgs.gov/index.html>). International borders politically divide the landscape but rarely represent barriers for environmental issues. The major issues surrounding the U.S.-Mexico border involve economics and population growth that present challenges to environmental management and natural resource planning. To monitor trends and analyze the stresses to the environment, binationally integrated baseline datasets that portray the status of the landscape are needed. The primary objective of this project is to develop integrated, environmental resource and human health datasets for display and further analysis within a geographic information system (GIS) framework.

Datasets created for the BEHI follow watershed boundaries as defined by Woodward and Durall (1996). As part of the U.S.-Mexico Border Field Coordinating Committee Issues Team, Woodward and Durall used surface-water drainage basins as the primary basis for defining and delineating the extent of the border area from a shared-water resources perspective. In order to provide integrated datasets in the border region, local and regional BEHI datasets have been clipped to this boundary.

This feature class is a binational compilation of geographic names data (points of physical/cultural interest) for use in the USGS Border Environmental Health Initative. This dataset is being completed in phases delineated by the subareas in the Border Environmental Health Initiative. More about this project is located at: <http://borderhealth.cr.usgs.gov/>

Official Geographic Names data for the project area were obtained from the USGS for the U.S., and the Instituto Nacional de Estadística Geografía e Informática (INEGI) for Mexico. Data for Ciudad Juárez, Chihuahua, Mexico were extracted from data supplied by the Instituto Municipal de Investigación y Planeación (IMIP). Currently, data are available for almost the entire study area of the BEHI.

It is important to note that the data from IMIP is not part of the official database kept by INEGI. However, it is used in this dataset since it contains a higher level of local detail and was readily available.

Since each country/agency has their own categorical system, a generalized categorical system was developed in order to integrate the data. When possible, the original category types were preserved when reassigning the new values.

Lastly, since we are using new methodologies to integrate these data, it is possible that future versions will have a generalized categorical system that differs from the one in this dataset.

Source dates for the U.S. data range from 1974 to June 06, 2005 in Texas, 1974 to Jan 18, 2006 in New Mexico, and 1974 to Jan 19, 2006 in Arizona and California. Source date for the INEGI data range from 1972-1999.

The source date for the IMIP data is 2005.

Purpose:

To create a binational set of geographic names data to be used on maps of 1:50,000 scale or smaller along the U.S./Mexico border. Although these data were created specifically for the USGS's border health project, it could also be used for any other maps that fall within the border health's extent. A map of this extent can be found at: <http://borderhealth.cr.usgs.gov/>

Furthermore, this dataset was created to provide resource managers, public officials, researchers, and the general public with ready access to accurate, impartial, scientific information to strike a balance among human needs for resource utilization, environmental quality, and human health.

Supplemental_Information:

Additional information about the Border Environmental Health Initiative can be found at <http://borderhealth.cr.usgs.gov> and datasets are available for viewing through an Internet Mapping Service (follow links on the main page to the Internet Mapping Service Viewer).

A map of the Border Health project's study areas can be found at: <http://borderhealth.cr.usgs.gov/projareas.html>

U.S. GNIS and GNIS metadata can be found at: <http://geonames.usgs.gov/GNIS.html>

The availability of INEGI's topónimos data changes over time, and an interactive map of what is currently available can be viewed at: <http://antares.inegi.gob.mx/map/prueba/index.html?c=388>

Metadata for the INEGI topónimos data can be found at: <http://antares.inegi.gob.mx/bdg/bdg50con.html>

For Ciudad Juárez, Chihuahua, IMIP data were used instead of INEGI data.

Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date:

USGS GNIS Data 1974-2005 (Texas), 1974-2006 (California, Arizona, New Mexico)

Single_Date/Time:

Calendar_Date: INGEI Topónimos Data: 1972-1999

Single_Date/Time:

Calendar_Date: IMIP Ciudad Juárez Data: 2004

Currentness_Reference: ground condition

Status:

Progress: In work

Maintenance_and_Update_Frequency: Unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -117.512508

East_Bounding_Coordinate: -96.186128

North_Bounding_Coordinate: 34.745776

South_Bounding_Coordinate: 25.142055

Keywords:

Theme:

Theme_Keyword: GNIS

Theme_Keyword: Topónimos

Theme_Keyword: Border Health

Theme_Keyword: United States

Theme_Keyword: Mexico

Theme_Keyword: Geographic Names

Theme:

Theme_Keyword_Thesaurus: Library of Congress

Theme_Keyword: Environmental Health

Theme_Keyword: Water

Theme:

Theme_Keyword_Thesaurus: ISOI 19115 Topic Category

Theme_Keyword: imageryBaseMapsEarthCover

Theme_Keyword: Imagery and Base Maps

Place:

Place_Keyword_Thesaurus: Library of Congress

Place_Keyword: Mexican-American Border Region

Place_Keyword: United States of America

Place_Keyword: Mexico

Place_Keyword: Rio Grande

Access_Constraints:

None. The data are available for viewing at <http://borderhealth.cr.usgs.gov>

Use_Constraints:

There is no guarantee concerning the accuracy of the data. Users should be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to <http://www.usgs.gov/privacy.html> for the USGS disclaimer.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Public Information Officer

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: 8027 Exchange Drive

City: Austin

State_or_Province: TX

Postal_Code: 78754-4733

Country: U.S.

Contact_Voice_Telephone: 512-927-3500

Contact_Facsimile_Telephone: 512-927-3590

Contact_Electronic_Mail_Address: gs-w-txpublic-info@usgs.gov

Data_Set_Credit:

This dataset was created from data gathered by the USGS, INEGI, and IMIP.

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350


Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Data from several different agencies were reclassified to fit a generalized categorical system. This is an evolving process, and categories may change in future versions of this dataset to ensure consistency and eliminate redundancy. However, original classifications are preserved in the attributes through the use of SQL statements and Python scripts.

Logical_Consistency_Report:

These data were imported from other agencies' data, and all spatial properties were preserved. Database queries were used to ensure that imported fields were preserved as well. Fields whose values are derived from the imported fields were calculated and verified with scripts to prevent errors. Any errors that existed in the original datasets persist in this dataset.

Completeness_Report:

All available USGS GNIS data that were within 25 kilometers of the BEHI study area were used.

Most of the INEGI 50k quads within the BEHI study area contain data. Some quads are missing data due to one of the following reasons: 1) At the time this dataset was created, topónimos data were not available for the quad, 2) Due to financial limitations, the information was not able to be purchased from INEGI.

Below is a list of the INEGI 50k quads that are missing data in this dataset: H12B64, H13D54, H13D59, H14C62, H14C63, H13D74, H14C72, H13D86, H14C83, and G14A47. For Ciudad Juárez, all IMIP data in the categories listed in process step 2 were used.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The USGS GNIS data is meant to be used on maps of 1:24,000 scale, but the INEGI topónimos data was created for 1:50,000 scale maps. IMIP data are accurate within +/- 5 meters.

Since the original datasets are of differing resolutions, scale suitabilty will depend on the extent of the displayed data.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: USGS U.S. Board on Geographic Names

Publication_Date: 2006

Title: Geographic Names Information System (GNIS)

Geospatial_Data_Presentation_Form: tabular digital data

Online_Linkage: <http://geonames.usgs.gov/index.html>

Source_Scale_Denominator: 24,000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: Texas: 1974 - June 6, 2005

Single_Date/Time:

Calendar_Date: New Mexico: 1974-Jan 18, 2006

Single_Date/Time:

Calendar_Date: Arizona and California: 1974 - Januray 19th, 2006

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: USGS 2006

Source_Contribution:

U.S. GNIS data located within 25 kilometers of the USGS Border Health project were imported into the binational GNIS dataset.

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Instituto Nacional de Estadística Geografía e Informática (INEGI)

Title:

Conjunto de Datos Toponímicos XXXXXX de la Carta Topogáfica Escala 1:50,000 (YYYYYYYY) (where XXXXXX denotes the INEGI 50k quad number and YYYYYYYY denotes the INEGI 50k quad name)

Online_Linkage: <http://www.inegi.gob.mx/inegi/default.asp>

Online_Linkage: <http://antares.inegi.gob.mx/bdg/bdg50con.html>

Source_Scale_Denominator: 50,000

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1972

Beginning_Time: 1999

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: INEGI Topónimos

Source_Contribution:

INEGI topónimos data for the entire border area, except Ciudad Juárez and the quads listed under supplemental information, were imported into the binational GNIS dataset.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Instituto Municipal de Investigación y Planeación (IMIP)

Title:

streams.shp, monuments.shp, catholic_churches.shp, christian_churches.shp, govagencies.shp, cemeteries.shp, assemblyplants.shp, industrialparks.shp

Online_Linkage: <http://www.imip.org.mx/>

Source_Scale_Denominator: unknown

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2005

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: IMIP 2005

Source_Contribution:

IMIP supplied several feature classes consisting of specific themes (e.g., churches, gas stations, assembly plants, etc.) within the city of Juárez, Chihuahua, Mexico. Feature classes from IMIP that were similar in theme to categories found in the USGS and INEGI GNIS data were imported into the binational GNIS database.

Process_Step:

Process_Description:

Obtain data from USGS, INEGI, and IMIP. USGS GNIS data were downloaded from the GNIS website, the others were received by CD-ROM from the originators.

Source_Used_Citation_Abbreviation: USGS 2006

Source_Used_Citation_Abbreviation: INEGI Topónimos

Source_Used_Citation_Abbreviation: IMIP 2004

Process_Step:

Process_Description:

In order to merge the datasets, a generalized categorical system had to be developed. To ensure the integrity of the conversion process, scripts written in Python were used. This guarantees that each conversion went under the same process, and prevents errors that could be introduced by a user doing manual and tedious edits.

The categories for the new system are defined as follows:

1. Physical Features - Landforms that are defined by natural features. For example, a mountain, valley, ridge, crater, or woods.

2. Water Features - Water bodies, streams, or channels. For example, a canal, bay, lake, arroyo, or swamp.

3. Administrative Areas - Features whose boundaries are defined by an administrative agency. For example, a wildlife reserve, a park, or floodplains defined by governmental agencies.

4. School - Building or group of buildings used as an institution for study, teaching, and learning (academy, college, high school, university). (Later removed from this dataset. A stand-alone "School" layer was developed for k-12 schools)

5. Transportation - Features relating to ground transportation. This category does not include bridges. For example, a road, a train station, a trail, or a tunnel. (Might contain trail, crossing, tunnel, train station.)

6. Other - Items that do not fit into the other categories.

7. Valley - (This category was reclassified under category #1: Physical Features)

8. Unknown - Any classes that are undefined. In the final versions, these should have their classes defined, or it should be removed from the dataset.

9. Airport - Manmade facility maintained for the use of aircraft (airfield, airstrip, landing field, landing strip).

10. Bridge - Manmade structure carrying a trail, road, or other transportation system across a body of water or depression. (causeway, overpass, trestle)

11. Building - A manmade structure with walls and a roof for protection of people and (or) materials, but not including hospitals or schools.

12. Cemetery - A place or area for burying the dead (burial, burying ground, grave, memorial garden).

13. Utilities - A location where a business organization is performing a public service and subject to special governmental regulation. (electric company, pumping station, pipelines).

14. Dam - Water barrier or embankment built across the course of a stream or into a body of water to control and (or) impound the flow of water (breakwater, dike, jetty).

15. Hospital - Building where the sick or injured may receive medical or surgical attention (infirmary). (Later removed from this dataset. A stand-alone "hospital" layer was developed)

16. Locale - Place at which there is or was human activity; it does not include populated places, mines, and dams (battlefield, crossroad, camp, farm, ghost town, landing, railroad siding, ranch, ruins, site, station, windmill).

17. Mine - Place or area from which commercial minerals are or were removed from the Earth; not including oilfield (pit, quarry, shaft).

18. Military - Place or facility formerly used for various aspects of or relating to military activity.

19. Oilfield - Area where petroleum is or was removed from the Earth.

20. Tower - A manmade structure, higher than its diameter, generally used for observation, storage, or electronic transmission.

21. Populated Place - Place or area with clustered or scattered buildings and a permanent human population (city, settlement, town, village).

22. Well - Manmade shaft or hole in the Earth's surface used to obtain fluid or gaseous materials.

23. Industry - Place or area where manufacturing of various goods occurs.

The original U.S. data were reclassified into the binational categories as follows: (definitions for the the original classifications can be found at the GNIS website)

1 - Physical Features: {bar, island, plain, beach, cliff, levee, flat, basin, ridge, cape, pillar, gap, arch, area, summit, range, bench, slope, crater, lava, woods}

2 - Water Features: {stream, canal, bay, lake, spring, reservoir, harbor, bend, channel, falls, arroyo, swamp, gut}

3 - Administrative Areas: {park, civil, reserve, forest}

4 - School: {school}

5 - Transportation: {trail, crossing, tunnel}

6 - Other: No longer a valid category.

7 - Valley: {valley}

8 - Unknown: { }

9 - Airport: {airport}

10 - Bridge: {bridge}

11 - Building: {building, church, po}

12 - Cemetery: {cemetery}

13 - Utilities: { }

14 - Dam: {dam}

15 - Hospital: {hospital}

16 - Locale: {locale}

17 - Mine: {mine}

18 - Military: {military}

19 - Oilfield: {oilfield}

20 - Tower: {tower}

21 - Populated Place: {populated place}

22 - Well: {well}

23 - Industry: {industry}

The original INEGI data was reclassified into the binational categories as follows: (INEGI uses an integer classification system instead of a text description, but the textual descriptors are included below. Furthermore, all of these categories have been reviewed and approved by INEGI, and in some cases suggested by INEGI)

1 - Physical Features: {304 - Bajío, 307 - Boquerón, 311 - Ceja, 312 - Cerro, 313 - Cordón, 314 - Desierto de Altar, 315 - Cueva, 316 - Cumbre, 317 - Desierto, 323 - Isla Interior, 324 - Ladera, 325 - Llano, 326 - Loma, 329 - Mesa, 332 - Peña, 333 - Picacho, 334 - Pico, 335 - Puerto Orográfico, 338 - Rinconada, 341 - Sierra, 343 - Volcán, 347 - Grieta, 507 - Barra, 508 - Boca, 527 - Playa, 533 - Punta, 618 - Zona Geotérmica}

2 - Water Features: {214 - Canal, 241 - Estanque, 403 - Arroyo, 406 - Lago, 408 - Manantial, 409 - Meandro, 410 - Poza, 411 - Presa (vaso de la presa), 412 - Río, 416 - Zona Sujeta a Inundación, 417 - bordo (vaso del bordo), 418 - Abrevadero, 504 - Bahía, 517 - Estero, 518 - Golfo, 532 - Laguna}

3 -Administrative Areas: {218 - Distrito de riego , 607 - Parque, 609 - Parque marino nacional, 610 - Reserva de biósfera, 616 - Sitio Arqueológico, 617 - Zona Arqueologica, 618 - Zona Geotérmica}

4 - School: {243 - Centro de estudios superiores}

5 - Transportation: {210 - Calle, 219 - Estación de ferrocarril}

6 - Other: {222 - Monumento u Obelisco, 229 - Potrero, 261 - Granja, 262 - Campamento de Vigilancia, 264 - Establo, 519 - Isla Marítima, 520 - Islote}

7 - Valley: {305 - Barranca, 308 - Cañada, 309 - Cañón, 342- Valle, 322 - Hoya}

8 - Unknown: {}

9 - Airport: {205 - Aeropuerto}

10 - Bridge: {231 - Puente}

11 - Building: {223 - Observatorio, 244 - Centro de Investigación, 249 - Estación Terrestre de Telecommunicaciones, 258 - Centro Cultural}

12 - Cemetery: { }

13 - Utilities: {202 - Acueducto, 203 - Aduana, 220 - Gasoducto, 224 - Planta de bombeo, 225 - Planta de Tratamiento de Agua, 226 - Planta hidroeléctrica, 228 - Planta termoeléctrica, 235 - Subestación eléctrica, 259 - Almacenes de Depósito, 263 - Depósito de Deshechos, 269 - Reclusorio}

14 - Dam: {209 - Bordo (Muro de contención), 230 - Presa (cortina de la presa)}

15 - Hospital: { }

16 - Locale: {216 - Centro recreativo, 604 - Lugar}

17 - Mine: {208 - Banco de Material, 234 - Salina, 221 - Mina, 240 - Zona de Minas, 267 - Jale o Terrero}

18 - Military: { }

19 - Oilfield: {213 - Campo petrolero}

20 - Tower: {206 - Antena de Radio, 207 - Antena de Televisión, 236 - Torre de microondas}

21 - Populated Place: {100 - Localidad}

22 - Well: { }

23 - Industry: {250 - Ingenio, 254 - Planta Siderúrgica, 255 - Planta Despepitadora, 257 - Zona Industrial}

The original IMIP data was reclassified into the binational categories as follows:

1 - Physical Features: { }

2 - Water Features: {Streams}

3 - Administrative Areas: { }

4 - School: { }

5 - Transportation: { }

6 - Other: {Monuments}

7 - Valley: { }

8 - Unknown: { }

9 - Airport: { }

10 - Bridge: { }

11 - Building: {Catholic churches, Christian Churches, Gov Agencies}

12 - Cemetery: {Cemeteries}

13 - Utilities: { }

14 - Dam: { }

15 - Hospital: { }

16 - Locale: { }

17 - Mine: { }

18 - Military: { }

19 - Oilfield: { }

20 - Tower: { }

21 - Populated Place: { }

22 - Well: { }

23 - Industry: {Assembly plants, Industrial Parks}

Source_Used_Citation_Abbreviation: USGS 2006

Source_Used_Citation_Abbreviation: INEGI Topónimos

Source_Used_Citation_Abbreviation: IMIP 2004

Process_Step:

Process_Description:

Once all the data were converted, they were merged together into one feature class with the following attributes.

binat_gnis_type: The new category that it fits in, 1-23

binat_name: The name of the feature

origin: The original classification. (integer for INEGI data, text for USGS/IMIP data) The text description for the IMIP data is also the name of the file that it came in.

source_agencies: The agency that supplied that particular record. It is an integer that references a domain.

master_id: The original ID#. This can be used to find the original record from the original agency or file. USGS data has a master_id that is a unique identifier for the entire GNIS database. INEGI data did not have a master ID. IMIP data use an ID that references the file it came from.


Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 66434


Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 27.000000

Standard_Parallel: 33.000000

Longitude_of_Central_Meridian: -107.000000

Latitude_of_Projection_Origin: 30.000000

False_Easting: 0.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.001537

Ordinate_Resolution: 0.001537

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Resolution: 0.000010

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates


Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: binat_GNIS_bw

Entity_Type_Definition:

This feature class is a binational compilation of geographic names data (points of physical/cultural interest) that can be used on maps of 1:50,000 scale or less.

Entity_Type_Definition_Source: author

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: SHAPE

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: binat_gnis_type

Attribute_Definition:

The new Geographic Names type (ex. Physical features, Water features, Bridge, etc.). The data type is an integer ranging from 1-3,5-14, or 16-23 that references a Domain in the geodatabase.

Attribute_Definition_Source:

The original data types and their new binational GNIS categories are listed in the under process step #2.

Attribute:

Attribute_Label: binat_name

Attribute_Definition: The name of the Geographic Feature.

Attribute_Definition_Source:

This value is derived form the original source, USGS, INEGI, or IMIP.

Attribute:

Attribute_Label: origin

Attribute_Definition:

The original Geographic Names type as classified by the source of the data. For USGS data, it is a text descriptor. INEGI data used an integer descriptor. IMIP data were sorted into shapefiles of single types, so the origin value for IMIP data is the name of the shapefile from which it was derived.

Attribute_Definition_Source:

This value is derived form the original source, USGS, INEGI, or IMIP.

Attribute:

Attribute_Label: source_agencies

Attribute_Definition:

The agency that supplied a particular record's data. It is an integer that references a domain in the geodatabase.

Attribute:

Attribute_Label: master_id

Attribute_Definition:

If available, the original ID# assigned by the agency that supplied the data. USGS data all have a master ID# that serves as a unique identifier for the entire GNIS database. The INEGI data did not include a unique identifier. IMIP data references an ID that was unique within the shapefile that the data was derived from

Attribute_Definition_Source:

This value is derived form the original source, USGS, INEGI, or IMIP.


Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Public Information Officer

Contact_Organization: U.S. Geological Survey

Contact_Voice_Telephone: 512-927-3500

Contact_Facsimile_Telephone: 512-927-3590

Contact_Electronic_Mail_Address: gs-w-txpublic-info@usgs.gov

Resource_Description: Downloadable Data

Distribution_Liability:

These data have not received Director's approval and as such are provisional and subject to revision. The data are released on the condition that neither the U.S. Geological Survey, its cooperators, nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.


Metadata_Reference_Information:

Metadata_Date: 20080213

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Delbert Humberson

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: 8027 Exchange Drive

City: Austin

State_or_Province: Texas

Postal_Code: 78754-4733

Country: U.S.

Contact_Voice_Telephone: 512-927-3500

Contact_Facsimile_Telephone: 512-927-3590

Contact_Electronic_Mail_Address: gs-w-txpublic-info@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile


Generated by mp version 2.8.6 on Wed Feb 13 16:21:03 2008