Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Images from Region 6.
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
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
A drill rig on a drill pad in Karnes County, Texas.
A drill rig on a drill pad in Karnes County, Texas.
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 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.
Benbrook Lake, December 2011. Photograph by Glenn Harwell, U.S. Geological Survey.
SIR 2012–5202
Benbrook Lake, December 2011. Photograph by Glenn Harwell, U.S. Geological Survey.
SIR 2012–5202
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.
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.
House damage in central Oklahoma from the magnitude 5.6 earthquake on Nov. 6, 2011. Research conducted by USGS geophysicist Elizabeth Cochran and her university-based colleagues suggests that this earthquake was induced by injection into deep disposal wells in the Wilzetta North field.
House damage in central Oklahoma from the magnitude 5.6 earthquake on Nov. 6, 2011. Research conducted by USGS geophysicist Elizabeth Cochran and her university-based colleagues suggests that this earthquake was induced by injection into deep disposal wells in the Wilzetta North field.
Lake Overholser in drought conditions, 2011
Electrofishing from a boat, Big Cypress Creek, Texas, July 27, 2011. Photograph taken by Justin A. McInnis, U.S. Geological Survey.
SIR 2013–5058
Electrofishing from a boat, Big Cypress Creek, Texas, July 27, 2011. Photograph taken by Justin A. McInnis, U.S. Geological Survey.
SIR 2013–5058
Electrofishing from a barge, Big Cypress Creek, Texas, July 27, 2011. Photograph taken by Erin C. Sewell, U.S. Geological Survey.
SIR 2013–5058
Electrofishing from a barge, Big Cypress Creek, Texas, July 27, 2011. Photograph taken by Erin C. Sewell, U.S. Geological Survey.
SIR 2013–5058
Cypress tree near Big Cypress Creek, Texas, July 27, 2011. Photograph taken by James B. Moring, U.S. Geological Survey.
SIR 2013–5058
Cypress tree near Big Cypress Creek, Texas, July 27, 2011. Photograph taken by James B. Moring, U.S. Geological Survey.
SIR 2013–5058
Cypress knees, Big Cypress Creek, Texas, July 27, 2011. Photograph taken by James B. Moring, U.S. Geological Survey.
SIR 2013–5058
Cypress knees, Big Cypress Creek, Texas, July 27, 2011. Photograph taken by James B. Moring, U.S. Geological Survey.
SIR 2013–5058
Measuring physical characteristics, Big Cypress Creek, Texas, July 26, 2011. Photograph taken by James B. Moring, U.S. Geological Survey.
SIR 2013–5058
Measuring physical characteristics, Big Cypress Creek, Texas, July 26, 2011. Photograph taken by James B. Moring, U.S. Geological Survey.
SIR 2013–5058
While the Souris River is in the throes of record high flooding in Minot, N.D., O.C. Fisher Lake near San Angelo, Texas has been experiencing the exact opposite for a number of years now - a ground-cracking drought.
While the Souris River is in the throes of record high flooding in Minot, N.D., O.C. Fisher Lake near San Angelo, Texas has been experiencing the exact opposite for a number of years now - a ground-cracking drought.
While the Souris River is in the throes of record high flooding in Minot, N.D., O.C. Fisher Lake near San Angelo, Texas has been experiencing the exact opposite for a number of years now - a ground-cracking drought.
While the Souris River is in the throes of record high flooding in Minot, N.D., O.C. Fisher Lake near San Angelo, Texas has been experiencing the exact opposite for a number of years now - a ground-cracking drought.
While the Souris River is in the throes of record high flooding in Minot, N.D., O.C. Fisher Lake near San Angelo, Texas has been experiencing the exact opposite for a number of years now - a ground-cracking drought.
While the Souris River is in the throes of record high flooding in Minot, N.D., O.C. Fisher Lake near San Angelo, Texas has been experiencing the exact opposite for a number of years now - a ground-cracking drought.
Dam with overflow pipe discharging water from spring (109) near Lee Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Monday, November 15, 2010.
Data Series 750
Dam with overflow pipe discharging water from spring (109) near Lee Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Monday, November 15, 2010.
Data Series 750
Spring (113) near Leon Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Tuesday, October 5, 2010.
Data Series 750
Spring (113) near Leon Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Tuesday, October 5, 2010.
Data Series 750
Spring (104) near the headwaters of Leon Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Tuesday, October 5, 2010.
Spring (104) near the headwaters of Leon Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Tuesday, October 5, 2010.
Big Bend National Park field trip with Anne Castle, Assisstant Secretary for Water and Science, DOI, September 2010. USGS Staff explaining USGS Science and water monitoring in the region.
Big Bend National Park field trip with Anne Castle, Assisstant Secretary for Water and Science, DOI, September 2010. USGS Staff explaining USGS Science and water monitoring in the region.
In 2009, USGS had a test plot professionally sealed with coal-tar-based sealcoat in preparation for measurements of volatilization from the pavement after application. Here, the newly applied sealcoat is black and shiny.
In 2009, USGS had a test plot professionally sealed with coal-tar-based sealcoat in preparation for measurements of volatilization from the pavement after application. Here, the newly applied sealcoat is black and shiny.
In 2009, USGS had a test plot professionally sealed with coal-tar-based sealcoat in preparation for measurements of volatilization from the pavement after application. Here, the applicator applies the sealcoat to the parking lot.
In 2009, USGS had a test plot professionally sealed with coal-tar-based sealcoat in preparation for measurements of volatilization from the pavement after application. Here, the applicator applies the sealcoat to the parking lot.