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The availability of groundwater-quality data for relatively deep wells (wells generally more than 300 feet deep) containing saline water (dissolved-solids concentrations greater than 2,000 milligrams per liter) is limited throughout the state of Texas. Water-quality samples are important for calibrating estimates of groundwater salinity derived from geophysical well logs. Water-quality data collected in 2021 from four wells completed in selected aquifers (Trinity, Carrizo-Wilcox, and Yegua-Jackson) in Texas are included in this data release.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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These vector contour lines are derived from the 3D Elevation Program using automated and semi-automated processes. They were created to support 1:24,000-scale CONUS and Hawaii, 1:25,000-scale Alaska, and 1:20,000-scale Puerto Rico / US Virgin Island topographic map products, but are also published in this GIS vector format. Contour intervals are assigned by 7.5-minute quadrangle, so this vector dataset is not visually seamless across quadrangle boundaries. The vector lines have elevation attributes (in feet above mean sea level on NAVD88), but this dataset does not carry line symbols or annotation.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.


map background search result map search result map USGS Topo Map Vector Data (Vector) 15325 Fischer TX (published 20220822) Shapefile USGS Topo Map Vector Data (Vector) 15325 Fischer TX (published 20220822) FileGDB USGS Topo Map Vector Data (Vector) 70297 Hammetts Crossing TX (published 20220822) FileGDB USGS Topo Map Vector Data (Vector) 34605 Pedernales Falls TX (published 20220823) FileGDB USGS Topo Map Vector Data (Vector) 38750 Round Mountain TX (published 20220823) Shapefile USGS US Topo 7.5-minute map for Pedernales Falls, TX 2019 USGS US Topo 7.5-minute map for Crabapple Creek, TX 2019 USGS US Topo 7.5-minute map for Hammetts Crossing, TX 2019 USGS US Topo 7.5-minute map for Rocky Creek, TX 2019 USGS US Topo 7.5-minute map for Spring Branch, TX 2019 Water-Quality Data for Determination of Saline Groundwater in Selected Aquifers in Texas, 2021 US Topo 7.5-minute map for Monument Hill, TX US Topo 7.5-minute map for Spicewood, TX USGS NED 1/3 arc-second Contours for San Antonio E, Texas 20220819 1 x 1 degree GeoPackage USGS Topo Map Vector Data (Vector) 4345 Blanco TX (published 20220820) GeoPackage USGS Topo Map Vector Data (Vector) 4463 Blowout TX (published 20220820) GeoPackage USGS Topo Map Vector Data (Vector) 69933 Dunman Mountain TX (published 20220822) GeoPackage USGS Topo Map Vector Data (Vector) 15325 Fischer TX (published 20220822) GeoPackage USGS Topo Map Vector Data (Vector) 20106 Henly TX (published 20220822) GeoPackage USGS Topo Map Vector Data (Vector) 38750 Round Mountain TX (published 20220823) GeoPackage USGS Topo Map Vector Data (Vector) 15325 Fischer TX (published 20220822) Shapefile USGS Topo Map Vector Data (Vector) 15325 Fischer TX (published 20220822) FileGDB USGS Topo Map Vector Data (Vector) 70297 Hammetts Crossing TX (published 20220822) FileGDB USGS Topo Map Vector Data (Vector) 34605 Pedernales Falls TX (published 20220823) FileGDB USGS Topo Map Vector Data (Vector) 38750 Round Mountain TX (published 20220823) Shapefile USGS US Topo 7.5-minute map for Pedernales Falls, TX 2019 USGS US Topo 7.5-minute map for Crabapple Creek, TX 2019 USGS US Topo 7.5-minute map for Hammetts Crossing, TX 2019 USGS US Topo 7.5-minute map for Rocky Creek, TX 2019 USGS US Topo 7.5-minute map for Spring Branch, TX 2019 US Topo 7.5-minute map for Monument Hill, TX US Topo 7.5-minute map for Spicewood, TX USGS Topo Map Vector Data (Vector) 4345 Blanco TX (published 20220820) GeoPackage USGS Topo Map Vector Data (Vector) 4463 Blowout TX (published 20220820) GeoPackage USGS Topo Map Vector Data (Vector) 69933 Dunman Mountain TX (published 20220822) GeoPackage USGS Topo Map Vector Data (Vector) 15325 Fischer TX (published 20220822) GeoPackage USGS Topo Map Vector Data (Vector) 20106 Henly TX (published 20220822) GeoPackage USGS Topo Map Vector Data (Vector) 38750 Round Mountain TX (published 20220823) GeoPackage USGS NED 1/3 arc-second Contours for San Antonio E, Texas 20220819 1 x 1 degree GeoPackage Water-Quality Data for Determination of Saline Groundwater in Selected Aquifers in Texas, 2021