Unified Interior Regions

Region 6: Arkansas-Rio Grande-Texas-Gulf

Regions L2 Landing Page Tabs

Filter Total Items: 142
Date published: November 30, 2018
Status: Active

Cherokee Platform Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Cherokee Platform Province 5060 in Western Oklahoma, Southeast Kandas and Western Missouri:

Date published: November 30, 2018
Status: Active

Anadarko Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Anadarko Basin Province 5058:

  • 2010 Conventional and Continuous Assessment (Fact Sheet 2011-3003, complete geologic report also available in 
  • ...
Date published: November 29, 2018
Status: Active

Gulf Coast Petroleum Systems Project - Research

This site highlights the research on the processes that impact the formation, accumulation, occurrence and alteration of hydrocarbon energy resources of the Gulf Coast of Mexico.  This portion of the project also conducts assessments of undiscovered, technically recoverable hydrocarbon resources (click here for...

Date published: November 29, 2018
Status: Active

Bend Arch-Fort Worth Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Bend Arch-Fort Worth Basin Province 5045, north-central Texas and southwestern Oklahoma:

  • 2015 Shale Gas and Shale Oil Assessment (Fact Sheet 2015-3018)
  • 2003 Conventional and Continuous Assessment (
  • ...
Date published: November 28, 2018
Status: Active

Natural Drought and Flood Histories from Lacustrine Archives

Previous work performed as part of the USGS Holocene Synthesis project illuminated complex centennial-scale patterns of drought and wetter-than-average conditions across the North American continent interior during the past two millennia, where paleorecord data coverage is sparse.  In order to explain the patterns of naturally-occurring drought, floods, and storms for the past, identified by...

Date published: November 1, 2018
Status: Active

Using Molecular Tools to Recalibrate Freshwater Mussel Taxonomy with a Focus on Imperiled Species

Freshwater mussels of the family Unionidae, also known as naiads, pearly mussels, freshwater clams, or unionids, are a diverse group of bivalve mollusks that are distributed on every continent except Antarctica. Approximately 300 species are known from the United States, with most of this diversity residing in rivers of the Southeast where many endemic taxa have evolved.

Date published: November 1, 2018
Status: Active

Permian Basin Oil and Gas Assessments

The USGS has conducted several assessments of undiscovered oil and gas in formations in the Permian Basin of western Texas.  This inlcudes the following:

Date published: August 9, 2018
Status: Active

Gulf Coast Petroleum Systems Project - Assessments

This site highlights the assessments of the Gulf Coast Petroleum Systems Project.   Scientifically robust assessments of undiscovered, technically recoverable hydrocarbon resources are published in a variety of USGS publications.  This project also conducts research on the processes that impact the formation, accumulation, occurrence and alteration of hydrocarbon energy resources (...

Date published: July 17, 2018
Status: Active

Estimating Potential Effects on Streamflow from Nearby Wells in the Lower San Antonio River Basin

The USGS Texas Water Science Center (TXWSC) developed a groundwater-flow model to estimate the potential for streamflow depletion in the Lower San Antonio River based on changes in groundwater pumping in the watershed. Results from the project can be used by the San Antonio River Authority (SARA) to better understand aquifer interactions with the river and potential groundwater pumping effects...

Contacts: Linzy Foster
Date published: July 16, 2018
Status: Completed

Pecos River Basin Salinity Assessment

The USGS Texas Water Science Center assesssed salinity of the Pecos River Basin from Santa Rosa Lake, New Mexico to the confluence of Pecos River and Rio Grande, Texas. This assessment included an extensive literature review, compilation of previously published salinity related data, data gap analysis, additional data collection to fill data gaps, and identification of potential areas of...

Contacts: Natalie Houston
Date published: June 18, 2018
Status: Active

Using Unmanned Aerial Systems (UAS) Capabilities to Help Identify Hummock-Hollow Formation and Fragmentation in Critical Marsh Habitat for Mottled Ducks

For many years, coastal marshes in Texas and Louisiana have served as critical habitat for the mottled duck (Anas fulvigula), which is considered a priority species in the Texas/Louisiana Gulf Coast area.

Filter Total Items: 42
Date published: April 13, 2017

Surface-water data for Oklahoma

Real-time and historical streamflow data collected throughout Oklahoma.

Date published: April 13, 2017

Groundwater data for Oklahoma

Current and historical groundwater data for Oklahoma.

Date published: April 13, 2017

Water-quality data for Oklahoma

Current and historical water-quality data for Oklahoma.

Date published: April 13, 2017

Water-use data for Oklahoma

Historical water-use data for Oklahoma.

Date published: April 13, 2017

Lake-level data for Oklahoma

Real-time and historical lake-level data for Oklahoma.

Date published: January 1, 2017

Recent flow and stage for Oklahoma

Access recent flood and stage data for streams and rivers throughout Oklahoma.

Date published: August 4, 2016

Prospect- and Mine-Related Features from U.S. Geological Survey 7.5- and 15-Minute Topographic Quadrangle Maps of the Western United States

These data are part of a larger USGS project to develop an updated geospatial database of mines, mineral deposits and mineral regions in the United States. Mine and prospect-related symbols, such as those used to represent prospect pits, mines, adits, dumps, tailings, etc., hereafter referred to as “mine” symbols or features, are currently being digitized on a st

Date published: April 20, 2016

Structures Data

USGS data portray selected structures data, including the location and characteristics of manmade facilities. Characteristics consist of a structure's physical form (footprint), function, name, location, and detailed information about the structure. The types of structures collected are largely determined by the needs of the disaster planning and response and homeland security organizations....

Date published: April 19, 2016

The United States Interagency Elevation Inventory (USIEI)

The USIEI is a comprehensive, nationwide listing of known high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort of the USGS and NOAA with contributions from other federal agencies. The inventory supports the 3D Elevation Program and the Integrated Ocean and Coastal Mapping effort. This resource is updated in Spring and...

Date published: April 19, 2016

Elevation Data

The 3DEP products and services available through The National Map consist of lidar point clouds (LPC), standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

Filter Total Items: 1,591
Publication Thumbnail
Year Published: 2019

Operationalizing small unoccupied aircraft systems for rapid flood inundation mapping and event response

Small Unoccupied Aircraft Systems (sUAS) offer the capability to collect rapid and accurate aerial survey data during flood response. The rapid collection of aerial flood data can potentially enable scientists to produce detailed geospatial products and related datasets in time for decisional support. A workflow for sUAS event response before,...

Engel, Frank L.; Hernandez, Rogelio

Publication Thumbnail
Year Published: 2019

Timescales of water-quality change in a karst aquifer, south-central Texas

Understanding the drivers and timescales over which groundwater quality changes informs groundwater management, use, and protection. To better understand timescales of water-quality change over short (daily to monthly) and long (seasonal to decadal) timescales, the U.S. Geological Survey’s National Water-Quality Assessment (NAWQA) Enhanced Trends...

Musgrove, MaryLynn; Solder, John E.; Opsahl, Stephen P.; Wilson, Jennifer T.

Publication Thumbnail
Year Published: 2019

Survey of bioaccessible pyrethroid insecticides and sediment toxicity in urban streams of the northeast United States

Pyrethroids are a class of widely-used insecticides that can be transported from terrestrial applications to aquatic systems via runoff and tend to sorb to organic carbon in sediments. Pyrethroid occurrence is detrimental to stream ecosystems due to toxicity to sediment-dwelling invertebrates which are particularly at risk of pyrethroid exposure...

Huff-Hartz, Kara E.; Nutile, Samuel A.; Fung, Courtney Y.; Sinche, Federico L.; Moran, Patrick W.; Van Metre, Peter C.; Nowell, Lisa H.; Lydy, Michael J.

Publication Thumbnail
Year Published: 2019

Council Monitoring and Assessment Program (CMAP): Inventory of existing water quality and habitat monitoring, and mapping metadata for Gulf of Mexico Programs

Under the Council-Selected Restoration Component of the RESTORE Act, the Council develops Funded Priority Lists (FPLs) that describe the projects and programs it will fund. Projects and programs funded through this component must be in furtherance of the goals and objectives of the Council’s Comprehensive Plan and address at least one of the...

Meyers, Michelle; Bosch, Julie; Burkart, Heidi; Clement, Chris; Enwright, Nicholas; Giordano, Steve; Jeffery, Chris; Hart, Rheannon; Hile, Sarah; Howell, Jacob; Lee, Michael; Laurenzano, Claudia ; McCloskey, Terrance; Mize, Scott; Monaco, Mark E.; Owen, Kevin; Rebich, Richard; Sample, Thomas; Steyer, Gregory D.; Suir, Kevin J.; Smith, Christopher G.; Watson, Katie; Bosch, Julie; Burkart, Heidi; Chivoiu, Bogdan; Clark, Randy; Clement, Chris; Enwright, Nicholas; Giordano, Steve; Jeffrey, Chris; Johnson, Edward; Hart, Rheannon M.; Hile, Sarah; Howell, Jacob; Laurenzano, Claudia ; Lee, Michael T.; McCloskey, Terrence A.; McTigue, Terry; Meyers, Michelle B.; Mize, Scott; Monaco, Mark E.; Owen, Kevin; Rebich, Richard A.; Rendon, Samuel H.; Robertson, Ali; Sample, Thomas; Steyer, Gregory D.; Suir, Kevin J.; Swarzenski, Christopher M.; Watson, Katie

Publication Thumbnail
Year Published: 2019

Differentiating anthropogenic and natural sources of uranium by geochemical fingerprinting of groundwater at the Homestake Uranium Mill, Milan, New Mexico, USA

A multiparameter geochemical-isotopic fingerprinting approach was used to differentiate natural and anthropogenic signatures of uranium contamination near the Homestake uranium mill site (Site), near Milan, New Mexico, USA. The Site consists of two tailings piles from milling operations and groundwater contamination from these tailings have been...

Blake, Johanna; Harte, Philip; Becher, Kent

Publication Thumbnail
Year Published: 2019

Capacity and area of Grand Lake O’ the Cherokees, northeastern Oklahoma, 2009

In February 2017, the Grand River Dam Authority filed to relicense the Pensacola Hydroelectric Project with the Federal Energy Regulatory Commission. The predominant feature of the Pensacola Hydroelectric Project is Pensacola Dam, which impounds Grand Lake O’ the Cherokees (locally called Grand Lake) in northeastern Oklahoma. Identification of...

Hunter, Shelby L.; Labriola, Laura G.
Hunter, S.L., and Labriola, L.G., 2019, Capacity and area of Grand Lake O’ the Cherokees, northeastern Oklahoma, 2009: U.S. Geological Survey Scientific Investigations Report 2019–5040, 18 p., https://doi.org/10.3133/sir20195040.

Publication Thumbnail
Year Published: 2019

Water resources of Richland Parish, Louisiana

Information concerning the availability, use, and quality of water in Richland 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. In 2014, about 41.73 million gallons per...

White, Vincent E.
White, V.E., 2019, Water resources of Richland Parish, Louisiana: U.S. Geological Survey Fact Sheet 2019–3005, 6 p., https://doi.org/10.3133/fs20193005.

Publication Thumbnail
Year Published: 2019

Simulation of water availability in the Southeastern United States for historical and potential future climate and land-cover conditions

A study was conducted by the U.S. Geological Survey (USGS), in cooperation with the Gulf Coastal Plains and Ozarks Landscape Conservation Cooperative (GCPO LCC) and the Department of the Interior Southeast Climate Adaptation Science Center, to evaluate the hydrologic response of a daily time step hydrologic model to historical observations and...

LaFontaine, Jacob H.; Hart, Rheannon M.; Hay, Lauren E.; Farmer, William H.; Bock, Andy R.; Viger, Roland J.; Markstrom, Steven L.; Regan, R. Steven; Driscoll, Jessica M.
LaFontaine, J.H., Hart, R.M., Hay, L.E., Farmer, W.H., Bock, A.R., Viger, R.J., Markstrom, S.L., Regan, R.S., and Driscoll, J.M., 2019, Simulation of water availability in the Southeastern United States for historical and potential future climate and land-cover conditions: U.S. Geological Survey Scientific Investigations Report 2019–5039, 83 p., https://doi.org/10.3133/sir20195039.

Publication Thumbnail
Year Published: 2019

Summary of climatic, geographic, geologic, and available hydrologic data and identification of data gaps for the Black Bear Creek watershed of the Pawnee Nation Tribal Jurisdictional Area, Oklahoma

The Pawnee Nation is compiling a comprehensive water-management plan for the Pawnee Nation Tribal Jurisdictional Area in north-central Oklahoma. One of the first steps needed in preparing such a plan is a summary and analysis of available hydrologic data and reports that have been published for the area. In phase I of a three-phase, watershed-...

Varonka, Matthew S.
Varonka, M.S., 2019, Summary of climatic, geographic, geologic, and available hydrologic data and identification of data gaps for the Black Bear Creek watershed of the Pawnee Nation Tribal Jurisdictional Area, Oklahoma: U.S. Geological Survey Scientific Investigations Report 2019–5043, 39 p., https://doi.org/10.3133/sir20195043.

Publication Thumbnail
Year Published: 2019

Water resources of Tensas Parish, Louisiana

Information concerning the availability, use, and quality of water in Tensas 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. In 2014, 38.01 million gallons...

White, Vincent E.
White, V.E., 2019, Water resources of Tensas Parish, Louisiana: U.S. Geological Survey Fact Sheet 2019–3004, 6 p., https://doi.org/10.3133/fs20193004.

Publication Thumbnail
Year Published: 2019

Characterizing groundwater/surface-water interaction using hydrograph-separation techniques and groundwater-level data throughout the Mississippi Delta, USA

The Mississippi Delta, located in northwest Mississippi, is an area dense with industrial-level agriculture sustained by groundwater-dependent irrigation supplied by the Mississippi River Valley Alluvial aquifer (alluvial aquifer). The Delta provides agricultural commodities across the United States and around the world. Observed declines in...

Killian, Courtney D.; Asquith, William H.; Barlow, Jeannie R. B.; Bent, Gardner C.; Kress, Wade; Barlow, Paul M.; Schmitz, Darrel W.

Publication Thumbnail
Year Published: 2019

Adjudicating groundwater: A judge’s guide to understanding groundwater and modeling

Dividing the Waters offers this groundwater science bench book that cannot be matched by any other scientific or judicial publication.  Adjudicating Groundwater combines the expertise and experience of academic scientists (UC Davis/Stanford), federal scientists (U.S. Geological Survey), and judicial officers to create a...

Brandt, Alf; Fienen, Michael N.; White, Jeremy; Harter, Thomas; Moran, Tara; Wildman, Eric

Filter Total Items: 265
Photograph showing Comal 1 spring run
December 31, 2017

Comal 1 spring run

Back cover photo from
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report 2018–

...
Photograph showing nitrate sensor at the Frio River at Concan, Tex.
December 31, 2017

Nitrate sensor at the Frio River at Concan, Tex.

Back cover photo from
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report 2018–

...
Photograph showing Comal spring run
December 31, 2017

Comal spring run

Cover background photo from
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report

...
Photograph showing Frio Stilling well
December 31, 2017

Frio Stilling well

Photo from pages 8 and 9 of
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report

...
Photograph showing dry Frio below Concan
December 31, 2017

Dry Frio below Concan

Photograph from page 19 of
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report

...
Photograph showing Helotes flood
December 31, 2017

Helotes flood

Page 67 photo from
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report 2018–5060

...
A crest stage gage in Texas.
November 17, 2017

A crest-stage gage provides a one-time measure of a flood peak height.

A Crest Stage Gage

Here is a low-tech device made of solely of a metal pipe, a wooden pole, and crushed cork that is invaluable to providing a one-time measurement of the maximum height (stage) that a stream hits during a high-water event.

Visit our

...
September 30, 2017

USGS Hurricane Preparedness

Before a hurricane, USGS Scientists undertake a data collection effort of a grand scale. They install a temporary mobile network of sensors along the coasts to collect additional data on the intensity of storm surge, one of the most dangerous elements of a hurricane. This effort provides critical information that allows various USGS partners and emergency responders to

Image shows a USGS scientist in a PFD taking a high-water measurement
September 11, 2017

Taking a High-Water Mark after Hurricane Harvey

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Hurricane Harvey in Wharton County, Texas.

Image shows a USGS scientist in a PFD taking a high-water measurement
September 11, 2017

Taking a High-Water Mark after Hurricane Harvey

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Hurricane Harvey in Wharton County, Texas.

Image shows a USGS scientist in a PDF taking a high-water mark
September 11, 2017

Taking a High-Water Mark after Hurricane Harvey

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Hurricane Harvey in Wharton County, Texas.

Image shows a USGS scientist in a PFD taking a high-water mark
September 11, 2017

Taking a High-Water Mark after Hurricane Harvey

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Harvey in Matagorda County, Texas.

Filter Total Items: 170
Satellite captured image of the rapidly intensifying storm, Harvey
August 25, 2017

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Harvey, visit the USGS Hurricane Harvey page.

This is a screenshot of the USGS Coastal Change Hazards Portal, which shows current coastal impact projections for Hurricane Har
August 25, 2017

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Harvey, visit the USGS Hurricane Harvey page.

UPDATE: This story has been revised to reflect new NOAA-National Hurricane Center storm surge projections which were released August 25 at 7 a.m.

This is a screenshot of the USGS Coastal Change Hazards Portal, which shows current coastal impact projections for Hurricane Har
August 24, 2017

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Harvey, visit the USGS Hurricane Harvey page.

UPDATE: This story has been revised to reflect new NOAA-National Hurricane Center storm surge projections which were released August 25 at 7 a.m.

Satellite image of Hurricane Harvey
August 24, 2017

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Harvey, visit the USGS Hurricane Harvey page.

Storm-tide sensors are being installed at key locations along the Texas Gulf Coast by the U.S. Geological Survey in advance of Hurricane Harvey.

House damage in central Oklahoma from a magnitude 5.6 earthquake in 2011
August 11, 2017

Editor:  In the public interest and in accordance with Federal Aviation Administration regulations, the USGS is announcing this low-level airborne project.  Your assistance in informing the local communities is appreciated.

This image demonstrates how the USGS Search API can be used to show the suggested locations appearing in the menu on the map
July 26, 2017

The U.S. Geological Survey Search API is a custom JavaScript library useful for creating a location search widget in a webpage, typically in conjunction with a web map. The widget connects to a database created for the API, or Application-Programming Interface, to quickly find and suggest locations as the user enters text to navigate to areas of interest. 

USGS scientist collects a groundwater-level measurement in Freeport, Texas. 
July 19, 2017

A new interactive web application illustrates how groundwater, sediment compaction and land-elevation change are related in the Houston-Galveston region in Texas. The new app was developed by the U.S. Geological Survey and is available online.

High Plains aquifer water-level changes, predevelopment to 2015
June 16, 2017

The U.S. Geological Survey has released a new report detailing changes of groundwater levels in the High Plains aquifer. The report presents water-level change data in the aquifer for two separate periods: from 1950 – the time prior to significant groundwater irrigation development – to 2015, and from 2013 to 2015.

Two men collecting groundwater samples at a public well in the middle of a grassy field in Texas
May 31, 2017

Decades or longer may be needed to fully assess the effects of unconventional oil and gas production on the quality of groundwater used for drinking water in Arkansas, Louisiana, and Texas

Image shows a map of U.S. states colored based on the value of their mineral industry
April 14, 2017

In 2016, these five states led the pack in mineral production, accounting for about one third of the total mineral production value for the entire country.

Filter Total Items: 102