Unified Interior Regions

Region 6: Arkansas-Rio Grande-Texas-Gulf

Regions L2 Landing Page Tabs

Filter Total Items: 1,614
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Year Published: 2014

Hydrologic data for the Obed River watershed, Tennessee

The Obed River watershed drains a 520-square-mile area of the Cumberland Plateau physiographic region in the Tennessee River basin. The watershed is underlain by conglomerate, sandstone, and shale of Pennsylvanian age, which overlie Mississippian-age limestone. The larger creeks and rivers of the Obed River system have eroded gorges through the...

Knight, Rodney R.; Wolfe, William J.; Law, George S.
Hydrologic data for the Obed River watershed, Tennessee; 2014; OFR; 2014-1102; Knight, Rodney R.; Wolfe, William J.; Law, George S.

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Year Published: 2014

Evaluation of groundwater and surface-water interactions in the Caddo Nation Tribal Jurisdictional Area, Caddo County, Oklahoma, 2010-13

Streamflows, springs, and wetlands are important natural and cultural resources to the Caddo Nation. Consequently, the Caddo Nation is concerned about the vulnerability of the Rush Springs aquifer to overdrafting and whether the aquifer will continue to be a viable source of water to tribal members and other local residents in the future. Interest...

Mashburn, Shana L.; Smith, S. Jerrod
Evaluation of groundwater and surface-water interactions in the Caddo Nation Tribal Jurisdictional Area, Caddo County, Oklahoma, 2010-13; 2014; SIR; 2014-5082; Mashburn, Shana L.; Smith, S. Jerrod

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Year Published: 2014

Concentrations of polycyclic aromatic hydrocarbons (PAHs) and azaarenes in runoff from coal-tar- and asphalt-sealcoated pavement

Coal-tar-based sealcoat, used extensively on parking lots and driveways in North America, is a potent source of PAHs. We investigated how concentrations and assemblages of PAHs and azaarenes in runoff from pavement newly sealed with coal-tar-based (CT) or asphalt-based (AS) sealcoat changed over time. Samples of simulated runoff were collected...

Mahler, Barbara; Van Metre, Peter C.; Foreman, William T.
Concentrations of polycyclic aromatic hydrocarbons (PAHs) and azaarenes in runoff from coal-tar- and asphalt-sealcoated pavement; 2014; Article; Journal; Environmental Pollution; Mahler, Barbara J.; Van Metre, Peter C.; Foreman, William T.

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Year Published: 2014

Mobile terrestrial light detection and ranging (T-LiDAR) survey of areas on Dauphin Island, Alabama, in the aftermath of Hurricane Isaac, 2012

Topographic survey data of areas on Dauphin Island on the Alabama coast were collected using a truck-mounted mobile terrestrial light detection and ranging system. This system is composed of a high frequency laser scanner in conjunction with an inertial measurement unit and a position and orientation computer to produce highly accurate topographic...

Kimbrow, Dustin R.
Mobile terrestrial light detection and ranging (T-LiDAR) survey of areas on Dauphin Island, Alabama, in the aftermath of Hurricane Isaac, 2012; 2014; DS; 855; Kimbrow, Dustin R.

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Year Published: 2014

Water resources of Acadia Parish, Louisiana

Information concerning the availability, use, and quality of water in Acadia Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and...

Prakken, Larry B.; White, Vincent E.
Water resources of Acadia Parish, Louisiana; 2014; FS; 2014-3043; Prakken, Larry B.; White, Vincent E.

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Year Published: 2014

Water quality of potential reference lakes in the Arkansas Valley and Ouachita Mountain ecoregions, Arkansas

This report describes a study to identify reference lakes in two lake classifications common to parts of two level III ecoregions in western Arkansas—the Arkansas Valley and Ouachita Mountains. Fifty-two lakes were considered. A screening process that relied on land-use data was followed by reconnaissance water-quality sampling, and two...

Justus, B.G.; Meredith, Bradley J.

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Year Published: 2014

Simulation of natural flows in major river basins in Alabama

The Office of Water Resources (OWR) in the Alabama Department of Economic and Community Affairs (ADECA) is charged with the assessment of the State’s water resources. This study developed a watershed model for the major river basins that are within Alabama or that cross Alabama’s borders, which serves as a planning tool for water-resource...

Hunt, Alexandria M.; García, Ana María
Simulation of natural flows in major river basins in Alabama; 2014; SIR; 2014-5021; Hunt, Alexandria M.; García, Ana María

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Year Published: 2014

Water resources of De Soto Parish, Louisiana

Information concerning the availability, use, and quality of water in De Soto Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and...

Prakken, Lawrence B.; White, Vincent E.
Water resources of De Soto Parish, Louisiana; 2014; FS; 2013-3107; Prakken, Lawrence B.; White, Vincent E.

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Year Published: 2014

Factors affecting public-supply well vulnerability in two karst aquifers

Karst aquifers occur in a range of climatic and geologic settings. Nonetheless, they are commonly characterized by their vulnerability to water-quality impairment. Two karst aquifers, the Edwards aquifer in south-central Texas and the Upper Floridan aquifer in western Florida, were investigated to assess factors that control the movement of...

Musgrove, MaryLynn; Katz, Brian G.; Fahlquist, Lynne S.; Crandall, Christy A.; Lindgren, Richard J.
Factors affecting public-supply well vulnerability in two karst aquifers; 2014; Article; Journal; Ground Water; Musgrove, Marylynn; Katz, Brian G.; Fahlquist, Lynne S.; Crandall, Christy A.; Lindgren, Richard J.

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Year Published: 2014

Water levels and water quality in the Sparta-Memphis aquifer (middle Claiborne aquifer) in Arkansas, spring-summer 2011

The U.S. Geological Survey, in cooperation with the Arkansas Natural Resources Commission and the Arkansas Geological Survey, has monitored water levels in the Sparta Sand of Claiborne Group and Memphis Sand of Claiborne Group (herein referred to as “the Sparta Sand” and “the Memphis Sand,” respectively) since the 1920s. Groundwater withdrawals...

Schrader, T.P.
Water levels and water quality in the Sparta-Memphis aquifer (middle Claiborne aquifer) in Arkansas, spring-summer 2011; 2014; SIR; 2014-5044; Schrader, T. P.

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Year Published: 2014

Water resources of Orleans Parish, Louisiana

Information concerning the availability, use, and quality of water in Orleans Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and...

Prakken, Lawrence B.; White, Vincent E.; Lovelace, John K.
Water resources of Orleans Parish, Louisiana; 2014; FS; 2014-3017; Prakken, Lawrence B.; White, Vincent E.; Lovelace, John K.

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Year Published: 2014

Water resources of Terrebonne Parish, Louisiana

Information concerning the availability, use, and quality of water in Terrebonne Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past...

Prakken, Lawrence B.; Lovelace, John K.; White, Vincent E.
Water resources of Terrebonne Parish, Louisiana; 2014; FS; 2014-3016; Prakken, Lawrence B.; Lovelace, John K.; White, Vincent E.

Filter Total Items: 265
Faulting in limestone outcrop downstream from where Greenwood Creek flows into the Colorado River.
October 31, 2012

Faulting in limestone outcrop, Greenwood Creek

Faulting in limestone outcrop downstream from where Greenwood Creek flows into the Colorado River, October 31, 2012 (photograph by Jennifer Wilson, U.S. Geological Survey).

SIR 2015–5098

Seeps along limestone outcrop downstream from where Jim John Creek flows into the Colorado River
October 31, 2012

Seeps along limestone outcrop, Jim John Creek

Seeps along limestone outcrop downstream from where Jim John Creek flows into the Colorado River, October 31, 2012 (photograph by Jennifer Wilson, U.S. Geological Survey).

SIR 2015–5098

Sam Rayburn Lake, September 2012
September 18, 2012

Sam Rayburn Lake

Sam Rayburn Lake, September 2012. Photograph by David LaRue, U.S. Army Corps of Engineers.

SIR 2012–5202

Granger Lake, September 2012
September 12, 2012

Granger Lake

Granger Lake, September 2012. Photograph by Ben Bohac, U.S. Army Corps of Engineers.

SIR 2012–5202

Exposed Austin Group in road cut excavation located on south side of U.S. Highway 90.
May 29, 2012

Austin Chalk roadcut

Exposed Austin Group in road cut excavation located on south side of U.S. Highway 90 and approximately midway between Sabinal and Knippa Texas, eastern Uvalde County, Tex. Photograph taken May 29, 2012.

SIR 2013–5149

Sandstone ledges in the Escondido Formation located approximately 7 miles south-southeast of the community of D’Hanis in Medina.
April 13, 2012

Sandstone ledges, Escondido Formation, Medina County

Sandstone ledges in the Escondido Formation located approximately 7 miles south-southeast of the community of D’Hanis in Medina County, Texas. Photograph taken April 13, 2012, by Robert R. Morris.

SIR 2013–5149

Image: Drill Rig in Karnes County
January 25, 2012

Drill Rig in Karnes County

A drill rig on a drill pad in Karnes County, Texas.

 

Outcrop of eroded and dissected extinct volcano located adjacent to the Frio River, east of Uvalde, Uvalde County, Texas.
January 12, 2012

outcrop of eroded, dissected extinct volcano, Frio River

Photograph showing outcrop of eroded and dissected extinct volcano located adjacent to the Frio River and east of the city of Uvalde in Uvalde County, Texas. Basalt is remnant of volcanic neck, and adjacent to the basalt is pyroclastic material ranging from fine-grained material to volcanic bombs, which formed the slope of the volcano. Photograph taken January 12, 2012, by

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Benbrook Lake, December 2011
December 21, 2011

Benbrook Lake

Benbrook Lake, December 2011. Photograph by Glenn Harwell, U.S. Geological Survey.

SIR 2012–5202

USGS scientist Dave Brandt holds a captured whooping crane .
December 6, 2011

USGS scientist holds a captured whooping crane.

USGS scientist Dave Brandt holds a captured whooping crane while Dr. Barry Hartup with the International Crane Foundation assesses the bird's health before marking.