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The Southwest Region ranges from the Colorado Rockies to the Gulf Coast and the Western Deserts to the Great Plains. The Southwest Region conducts multi- and interdisciplinary research and monitoring in locations across the Region, the United States, around the world, and across our solar system.

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USGS scientist David Rodriguez records high water marks from storm surge following Harvey near Corpus Christi, Texas. 
September 8, 2017

Recording high water marks following Harvey

USGS scientist David Rodriguez records high water marks from storm surge following Harvey near Corpus Christi, Texas. 

Satellite image showing the flooding in Texas from Hurricane Harvey.
September 5, 2017

Hurricane Harvey Flooding

Extensive flooding inundated the Gulf Coast of Texas after Hurricane Harvey made landfall as a Category 4 hurricane on August 25, 2017. Among the many waterways in southeastern Texas that exceeded flood stage was the Brazos River, which flows past Houston to its west and to the Gulf of Mexico at Freeport.

USGS scientist surveying high water marks from storm surge from Hurricane Harvey at Packery Channel near Corpus Christi, TX.
September 5, 2017

High Water Mark Surveying

USGS scientist Alec McDonald surveying high water marks from storm surge from Hurricane Harvey at Packery Channel near Corpus Christi, Texas.

USGS scientist Vidal Mendoza surveying high water marks from storm surge from Hurricane Harvey near Port Aransas, Texas.
September 5, 2017

Surveying High Water Marks following Harvey

USGS scientist Vidal Mendoza surveying high water marks from storm surge from Hurricane Harvey near Port Aransas, Texas.

Pre- and post-Harvey photos for Sargent, Texas
September 5, 2017

Pre- and post-Harvey photos for Sargent, Texas

Location 4. Sand dunes along this stretch of coast in Sargent, Texas, were overwashed by large waves during the storm. Sand from the beach and dunes is covering the roadway behind the dunes and which may be impassable. The predicted probability of overwash in this area was 94%.

Image shows USGS scientists planning their water quality work on a whiteboard
August 31, 2017

Water Quality Sampling Planning Following Hurricane Harvey

A peek into a USGS planning meeting to coordinate water-quality sampling efforts in response to Harvey. This sampling effort is part of the federal government’s broad efforts to ensure public health and to support the state, tribal, and local response to the storm

Image shows USGS scientists in PFDs taking water quality samples from Lake Houston
August 31, 2017

Water Quality Sampling on Lake Houston Following Hurricane Harvey

A USGS field crew takes water-quality samples on Lake Houston following Harvey.

Image shows a USGS scientist in a PFD servicing a water quality monitor on a lake
August 31, 2017

Water Quality Sampling on Lake Houston Following Hurricane Harvey

USGS scientist Lisa Ashmore services a water-quality monitor on Lake Houston. These instruments stayed afloat and collected data throughout the storm.

August 31, 2017

Image of the Week: Hurricane Harvey Inundates Gulf Coast

Hurricane Harvey made landfall on August 25th. Over the next few days, record rain totals had devastated the area.

At the USGS EROS Center, we study land change, operate the Landsat satellites, and maintain the longest, continuously acquired collection of images of the Earth's land surface.

USGS EROS Center (

USGS scientists Lisa Ashmore and Lee Bodkin collect water-quality samples on Lake Houston in response to Harvey.
August 31, 2017

Collecting Water Quality Samples following Harvey

USGS scientists Lisa Ashmore and Lee Bodkin collect water-quality samples on Lake Houston in response to the high flow conditions that resulted from Harvey. 

Image shows a USGS scientist in a PFD servicing a streamgage
August 31, 2017

Servicing a Streamgage at Addicks Reservoir following Hurricane Harvey

USGS scientist Jimmy Hopkins repairs a streamgage downstream of Addicks reservoir at Buffalo Bayou after flooding from Hurricane Harvey. This gauge is normally accessed on land from a platform on the side of a bridge.

USGS scientist Lisa Ashmore services a water-quality monitor on Lake Houston. These instruments stayed afloat throughout Harvey.
August 31, 2017

Servicing a water-quality monitor following Harvey

USGS scientist Lisa Ashmore services a water-quality monitor on Lake Houston. These instruments stayed afloat and collected data throughout Harvey. 

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This image shows a damaged street sign and flood debris left behind by record flood waters of the Blanco River near Martindale,
April 10, 2017

The new “Water On-the-Go” mobile app gives the public easy access to current conditions in streams across Texas. This product was developed by the U.S. Geological Survey to help raise water awareness during both floods and normal conditions.

Photo of USGS streamgage measures flooding in the lower Trinity River
February 22, 2017

A better understanding of sediment and freshwater flow into Galveston Bay is now available from a new U.S. Geological Survey report, done in cooperation with the Texas Water Development Board, and the Galveston Bay Estuary Program.

USGS
February 8, 2017

A new JavaScript library, called GWIS (Graphing Water Information System), can create time-series plots of information measured at U.S. Geological Survey hydrologic data collection sites across the United States.

Photo of a young girl drinking water, which likely originated from groundwater sources. 
January 19, 2017

A regional assessment of untreated groundwater in the Coastal Lowlands aquifer system in the southeastern United States is now available from the U.S. Geological Survey.

Photo of two of the main spring discharge points of Comal springs.
December 7, 2016

A new U.S. Geological Survey website provides important information about streamflow in the Comal and San Marcos Rivers and springflow at Comal and San Marcos Springs. This website was developed in collaboration with the Edwards Aquifer Authority.

Southwestern Willow Flycatcher
September 6, 2016

A new report by the U.S. Geological Survey shows, for the first time ever, detailed habitat information on the entire range of a federally listed endangered bird allowing officials to take a scientific approach to helping protect the species.

Crop of OK earthquake
September 3, 2016

A magnitude 5.8 earthquake struck in Oklahoma on September 3, 2016 at 12:02:44 UTC (7:02 am local time). 

Photo of the Colorado River near Moab, Utah
August 15, 2016

Future groundwater replenishment in the Upper Colorado River Basin may benefit from projected increases in future basin-wide precipitation under current climate projections, according to a recent study by the U.S. Geological Survey and Bureau of Reclamation.

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