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Project Description
Project Objectives
Maps & Data
Internet Mapping Service
Data Download
Static Map Library
Data Tables
Methods/Documentation
Publications
Acknowledgements & Links
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Static Maps
Click on an image to view a larger version.
| 1:8,500,000 |
Description |
Source |
 |
This map displays ecological regions that intersect the United States-Mexico Border. This map also includes the Border Health Initiative regions and shaded relief.This map displays the Border Health Initiative regions and shaded relief. |
Base Map: The United States-Mexico border and the Border Environmental Health Initiative regions were obtained from the U.S. Geological Survey's Border Environmental Health Initiative. To download the boundary data, click here.
The shaded relief was created by the U.S. Geological Survey's National Center for EROS from GTOPO30 data, and provided by the North American Atlas. To download the shaded relief in geotiff format, or for more information, click here.
Source: The Ecological regions were obtained from the Commission for Environmental Cooperations North American Environmental Atlas. To download these data, click here.
For additional information visit http://borderhealth.cr.usgs.gov |
| 1:8,000,000 |
Description |
Source |
 |
This map displays the Border Health Initiative regions and shaded relief.
|
Base map: The United States-Mexico border and the Border Environmental Health Initiative regions were obtained from the U.S. Geological Survey's Border Environmental Health Initiative. To download the boundary data, click here.
The shaded relief was created by the U.S. Geological Survey's National Center for EROS from GTOPO30 data, and provided by the North American Atlas. To download the shaded relief in geotiff format, or for more information, click here.
For additional information visit http://borderhealth.cr.usgs.gov |
| 1:9,340,030 |
Description |
Source |
 |
This map displays federal lands in the United States and protected areas in Mexico along the United States-Mexico Border. This map also includes state boundaries and shaded relief.
|
Base map: The United States-Mexico border and the Border Environmental Health Initiative study sub areas were obtained from the U.S. Geological Survey's Border Environmental Health Initiative. To download the boundary data, click here.
The shaded relief was created by the U.S. Geological Survey's National Center for EROS from GTOPO30 data, and provided by the North American Atlas. To download the shaded relief in geotiff format, or for more information, click here.
Source:The Ecological regions were obtained from the National Atlas' Commission for Environmental Cooperation. To download these data, click here.
For additional information visit http://borderhealth.cr.usgs.gov/ |
| 1:1,300,000 |
Description |
Source |
 |
This map displays the study area extent with county/municipio boundaries overlaid on Landsat Imagery with a 432 band
combination. Major landmarks are labeled.
The 432 band combination, or standard "false color" composite, displays vegetation in shades of red, urban areas as
blues, and soils from dark to light browns. This band combination is similar to color infrared aerial photography.
Band Combinations |
Base map: Created from a mosaic of Landsat 7 ETM+ images captured in March and May of 2003 and shown with a 432
band combination.
Source: Counties/Municipios layer derived from TNRIS data for the U.S. and INEGI data for Mexico. The study area boundary
was determined by the Border Environmental Health Initiative project and was based on watershed boundaries.
For additional information visit http://borderhealth.cr.usgs.gov/ |
 |
This map displays the study area extent with county/municipio boundaries overlaid on Landsat Imagery with a 543 band
combination. Major landmarks are labeled.
The 543 combination provides the user with a great amount of information and color contrast. Healthy vegetation is bright green
and soils are mauve.
Band Combinations |
Base map: Created from a mosaic of Landsat 7 ETM+ images captured in March and May of 2003 and shown with a 543
band combination.
Source: Counties/Municipios layer derived from TNRIS data for the U.S. and INEGI data for Mexico. The study area boundary
was determined by the Border Environmental Health Initiative project and was based on watershed boundaries.
For additional information visit http://borderhealth.cr.usgs.gov/ |
 |
This map displays the study area extent with county/municipio boundaries overlaid on a binational Land Use and Land Cover
classification. Major landmarks are labeled. |
Base map: Land Use and Land Cover classifications derived from the 1992 National Land Cover dataset in the U.S. and INEGI
Uso de Suelos y Vegetación dataset in Mexico.
Source: Counties/Municipios layer derived from TNRIS data for the U.S. and INEGI data for Mexico. The study area boundary
was determined by the Border Environmental Health Initiative project and was based on watershed boundaries.
For additional information visit http://borderhealth.cr.usgs.gov/ |
 |
This map displays the study area extent showing surface geology. Major landmarks and geologic features are labeled.
An explanation of the geologic formations is available as a PDF. Click here to download. |
Base map: Compiled by integrating geologic unit polygons, lines, and point data from the McAllen-Brownsville
(Bureau of Economic Geology, 1976), Matamoros (INEGI, 1982a), Rio Bravo (INEGI, 1982b), Reynosa (INEGI, 1983), and Monclova
(INEGI, 1991) 1:250,000-scale quadrangles.
Source: Counties/Municipios layer derived from TNRIS data for the U.S. and INEGI data for Mexico. The study area boundary
was determined by the Border Environmental Health Initiative project and was based on watershed boundaries.
For additional information visit http://borderhealth.cr.usgs.gov/ |
| 1:500,000 |
 |
This map displays the major population center extent with primary and secondary roads, rivers, streams, and canals, and sites
where contaminants were found in biota overlaid on Landsat Imagery with a 321 band combination. Major landmarks are labeled.
The 321, or "natural color," band combination uses the visible bands, and ground features appear in colors similar to their
appearance to the human visual system. Healthy vegetation is green, recently cleared fields are very light, unhealthy vegetation
is brown and yellow, roads are gray, and shorelines are white.
Band Combinations |
Base map: Created from a mosaic of Landsat 7 ETM+ images captured in March and May of 2003 and shown with a 321 band
combination.
Source: Primary and Secondary roads derived from TNRIS StratMap data within the U.S. and INEGI data within Mexico.
Rivers, streams, and canals where derived from the USGS National Hydro Dataset in the U.S. and from 1:50,000 Datos Toponimos
data in Mexico. The Contaminants in Biota dataset was developed for the Border Environmental Health project by the USGS.
For additional information visit http://borderhealth.cr.usgs.gov/ |
| 1:250,000 |
 |
This map displays the urban areas of Brownsville and Matamoros. Potential Sources of Contamination (PSOCs), geographic
landmarks, sites where contaminants were found in biota, roads, rivers, streams, and canals are overlaid on a Landsat 7 ETM+
masaic with a 321 band combination.
The 321, or "natural color," band combination uses the visible bands, and ground features appear in colors similar to their
appearance to the human visual system. Healthy vegetation is green, recently cleared fields are very light, unhealthy
vegetation is brown and yellow, roads are gray, and shorelines are white.
Band Combinations |
Base map: Created from a mosaic of Landsat 7 ETM+ images captured in March and May of 2003 and shown with a 321 band
combination.
Source: Roads in the U.S. were derived from TNRIS Strat Map data and roads in Mexico were derived from INEGI data.
Rivers, streams, and canals were derived from the USGS National Hydro Dataset in the U.S. and from 1:50,000 Datos Toponimos
data in Mexico. Geographical landmarks are from the Geographic Names Information System (GNIS) in the U.S., and INEGI data
in Mexico. PSOCs were assembled from Texas Commission on Environmental Quality (TCEQ) data within the U.S. and interpreted
from INEGI data within Mexico. The Contaminants in Biota dataset was developed for the Border Environmental Health project
by the USGS.
For additional information visit http://borderhealth.cr.usgs.gov/ |
 |
This map displays the urban areas of Brownsville and Matamoros with primary, secondary, and tertiary roads. Population
densities were calculated from 2000 census data by dividing number of people per square kilometer. Categories were assigned
according to natural breaks.
Band Combinations |
Base map: Population densities derived from block group data for the 2000 U.S. Census and INEGI ageb data for the
2000 Mexican Census. Density ranges were determined by Jenks Natural Breaks, and therefore, represent unequal intervals.
Source: Roads in the U.S. were derived from TNRIS StratMap data and roads in Mexico were derived from INEGI data.
For additional information visit http://borderhealth.cr.usgs.gov/ |
 |
This map displays the urban areas of McAllen and Reynosa. Potential Sources of Contamination (PSOCs), geographic landmarks, sites
where contaminants were found in biota, roads, rivers, streams, and canals are overlaid on a Landsat 7 ETM+ mosaic with a 321 band
combination.
The 321, or "natural color," band combination uses the visible bands, and ground features appear in colors similar to their
appearance to the human visual system. Healthy vegetation is green, recently cleared fields are very light, unhealthy
vegetation is brown and yellow, roads are gray, and shorelines are white.
Band Combinations |
Base map: Created from a mosaic of Landsat 7 ETM+ images captured in March and May of 2003 and shown with a 321 band
combination.
Source: Roads in the U.S. were derived from TNRIS StratMap data and roads in Mexico were derived from INEGI data.
Rivers, streams, and canals were derived from the USGS National Hydro Dataset in the U.S. and from 1:50,000 Datos Toponimos
data in Mexico. Geographical landmarks are from the Geographic Names Information System (GNIS) in the U.S., and INEGI data
in Mexico. PSOCs were assembled from Texas Commission on Environmental Quality (TCEQ) data within the U.S. and interpreted
from INEGI data within Mexico. The Contaminants in Biota dataset was developed for the Border Environmental Health project
by the USGS.
For additional information visit http://borderhealth.cr.usgs.gov/ |
 |
This map displays McAllen and Reynosa and surrounding urban areas with primary, secondary, and tertiary roads. Population
densities were calculated from 2000 census data by dividing number of people per square kilometer. Categories were assigned
according to natural breaks. |
Base map: Population densities derived from block group data for the 2000 U.S. Census and INEGI ageb data for the 2000
Mexican Census. Density ranges were determined by Jenks Natural Breaks, and therefore, represent unequal intervals.
Source: Roads in the U.S. were derived from TNRIS StratMap data and roads in Mexico were derived from INEGI data.
For additional information visit http://borderhealth.cr.usgs.gov/ |
 |
This map shows Brownsville and Matamoros using LIDAR imagery. The rivers, streams, canals, and waterbodies are overlaid to
illustrate the various resacas and meanderos typical of this area. |
Base map: LIDAR data sensed in January 2003 by The University of Texas, Center for Space Research.
Source: Rivers, streams, canals and waterbodies were derived from the USGS National Hydro Dataset in the U.S.
and from 1:50,000 Datos Toponimos data in Mexico.
For additional information visit http://borderhealth.cr.usgs.gov/ |
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U.S. Department of the Interior | U.S. Geological Survey
