Mission Areas

Groundwater and Streamflow Information Program

Programs L2 Landing Page

The Groundwater and Streamflow Information Program (GWSIP) is one of four Water Investigations Programs funded by Congress to identify, measure, and assess the Nation’s water resources. The GWSIP is the principal USGS Program for monitoring groundwater and streamflow, including floods and droughts, related to groundwater resources at the regional/national scales.

USGS Current Daily Streamflow Conditions

USGS Current Daily Streamflow Conditions

Real-Time Streamflow

Groundwater Watch

Groundwater Watch

Groundwater Watch

News

Tuktu Bluffs of the Alaska North Slope
May 23, 2017

Budget Focuses on Core USGS Science and Efficiency

Photo of Flooding on Mississippi River in December 2015
October 13, 2016

An assessment of the flooding that occurred in the Meramec River Basin from December 2015–January 2016 is available in a new report from the U.S. Geological Survey. The report includes peak stages and streamflows, historical comparisons and flood-frequency statistics from the record flood.

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.

Filter Total Items: 3
National Groundwater Awareness Week
April 20, 2016

Science to discover and describe the location, condition, and behavior of water in the ground.

USGS science for a changing world logo
March 12, 2016

These assessments will document the effects of human activities on water levels, groundwater storage, and discharge to streams and other surface-water bodies; explore climate variability impacts on the regional water budget; and evaluate the adequacy of data networks to assess impacts at a regional scale.

USGS science for a changing world logo
March 12, 2016

At the core of NSIP will be a set of USGS-funded streamgages strategically positioned across the country that are continuously operated to fulfill five Federal needs for streamflow information. These will be a permanent set of core streamgages from which streamflow information would be delivered in real time, uncompromised by changing support from funding partners.

Filter Total Items: 2
USGS science for a changing world logo
March 12, 2016

Groundwater Level Data

Measurements of groundwater levels from wells are used to monitor changes in groundwater conditions due to climate variability and withdrawals (pumping). The GWRP has supported the development of a Groundwater Climate-Response Network, a network of wells selected to illustrate the response of the groundwater system to climate variations nationwide.

USGS science for a changing world logo
March 12, 2016

Geophysical Methods & Applications

USGS conducts research into new and emerging geophysical methods and applications for groundwater investigations. Near-surface geophysical techniques can be used to rapidly and effectively characterize the shallow subsurface and to monitor hydrologic and remediation processes in ways not previously possible with standard technology.

Filter Total Items: 706
Geologic map of the Strawberry Butte 7.5’ quadrangle, Meagher County, Montana
Year Published: 2017

Geologic map of the Strawberry Butte 7.5’ quadrangle, Meagher County, Montana

The 7.5′ Strawberry Butte quadrangle in Meagher County, Montana near the southwest margin of the Little Belt Mountains, encompasses two sharply different geologic terranes. The northern three-quarters of the quadrangle are underlain mainly by Paleoproterozoic granite gneiss, across which Middle Cambrian sedimentary rocks rest unconformably. An...

Reynolds, Mitchell W.; Brandt, Theodore R.
Reynolds, M.W., and Brandt, T.R., 2017, Geologic map of the Strawberry Butte 7.5’ quadrangle, Meagher County, Montana: U.S. Geological Survey Scientific Investigations Map 3379, pamphlet 16 p., 2 sheets, scale 1:24,000, https://doi.org/10.3133/sim3379.
Bayesian methods to estimate urban growth potential
Year Published: 2017

Bayesian methods to estimate urban growth potential

Urban growth often influences the production of ecosystem services. The impacts of urbanization on landscapes can subsequently affect landowners’ perceptions, values and decisions regarding their land. Within land-use and land-change research, very few models of dynamic landscape-scale processes like urbanization incorporate empirically-grounded...

Smith, Jordan W.; Smart, Lindsey S.; Dorning, Monica; Dupéy, Lauren Nicole; Méley, Andréanne; Meentemeyer, Ross K.
Smith, JW, LS Smart, MA Dorning, LN Dupéy, A Méley and RK Meentemeyer. 2017. Bayesian methods to estimate urban growth potential. Landscape and Urban Planning 163: 1-16.
Sculpted by water, elevated by earthquakes—The coastal landscape of Glacier Bay National Park, Alaska
Year Published: 2017

Sculpted by water, elevated by earthquakes—The coastal landscape of Glacier Bay National Park, Alaska

Within Glacier Bay National Park in southeastern Alaska, the Fairweather Fault represents the onshore boundary between two of Earth’s constantly moving tectonic plates: the North American Plate and the Yakutat microplate. Satellite measurements indicate that during the past few decades the Yakutat microplate has moved northwest at a rate of nearly...

Witter, Robert C.; LeWinter, Adam; Bender, Adrian M.; Glennie, Craig; Finnegan, David
Witter, R.C., LeWinter, A., Bender, A., Glennie, C., and Finnegan, D., 2017, Sculpted by water, elevated by earthquakes—The coastal landscape of Glacier Bay National Park, Alaska: U.S. Geological Survey General Information Product 177, https://doi.org/10.3133/gip177.
Investigating the landscape of Arroyo Seco—Decoding the past—A teaching guide to climate-controlled landscape evolution in a tectonically active region
Year Published: 2017

Investigating the landscape of Arroyo Seco—Decoding the past—A teaching guide to climate-controlled landscape evolution in a tectonically active region

IntroductionArroyo Seco is a river that flows eastward out of the Santa Lucia Range in Monterey County, California. The Santa Lucia Range is considered part of the central California Coast Range. Arroyo Seco flows out of the Santa Lucia Range into the Salinas River valley, near the town of Greenfield, where it joins the Salinas River. The Salinas...

Taylor, Emily M.; Sweetkind, Donald S.; Havens, Jeremy C.
Taylor, E.M., Sweetkind, D.S., and Havens, J.C., 2017, Investigating the landscape of Arroyo Seco—Decoding the past—A teaching guide to climate-controlled landscape evolution in a tectonically active region: U.S. Geological Survey Circular 1425, 44 p., https://doi.org/10.3133/c1425.
Oil and gas development influences big-game hunting in Wyoming
Year Published: 2017

Oil and gas development influences big-game hunting in Wyoming

Development from extracting oil and gas resources can have unintended effects on multiple ecosystem functions, with cascading effects on wildlife, ecosystem services, and local economies. Big-game hunting opportunities may be closely related to these effects, but empirical analyses of impacts of energy development on hunting are limited.

Dorning, Monica; Garman, Steven L.; Diffendorfer, James E.; Semmens, Darius J.; Hawbaker, Todd J.; Bagstad, Kenneth J.
Dorning, M. A., Garman, S. L., Diffendorfer, J. E., Semmens, D. J., Hawbaker, T. J. and Bagstad, K. J. (2017), Oil and gas development influences big-game hunting in Wyoming. Jour. Wild. Mgmt., 81: 379–392. doi:10.1002/jwmg.21205
Eastern Denali Fault surface trace map, eastern Alaska and Yukon, Canada
Year Published: 2017

Eastern Denali Fault surface trace map, eastern Alaska and Yukon, Canada

We map the 385-kilometer (km) long surface trace of the right-lateral, strike-slip Denali Fault between the Totschunda-Denali Fault intersection in Alaska, United States and the village of Haines Junction, Yukon, Canada. In Alaska, digital elevation models based on light detection and ranging and interferometric synthetic aperture radar data...

Bender, Adrian M.; Haeussler, Peter J.
Bender, A.M., and Haeussler, P.J., 2017, Eastern Denali Fault surface trace map, eastern Alaska and Yukon, Canada: U.S. Geological Survey Open-File Report 2017–1049, 10 p., https://doi.org/10.3133/ofr20171049.
Controls on the chemical composition of saline surface crusts and emitted dust from a wet playa in the Mojave Desert (USA)
Year Published: 2017

Controls on the chemical composition of saline surface crusts and emitted dust from a wet playa in the Mojave Desert (USA)

Saline-surface crusts and their compositions at ephemeral, dry, and drying lakes are important products of arid-land processes. Detailed understanding is lacking, however, about interactions among locally variable hydrogeologic conditions, compositional control of groundwater on vadose zone and surface salts, and dust composition. Chemical and...

Goldstein, Harland L.; Breit, George N.; Reynolds, Richard L.
Goldstein, H.L., Breit, G.N., Reynolds, R.L., 2017, Controls on the chemical composition of saline surface crusts and emitted dust from a wet playa in the Mojave Desert (USA). Journal of Arid Environments, 140, p. 50-66.
 The effect of lithology on valley width, terrace distribution, and coarse sediment provenance in a tectonically stable catchment with flat-lying stratigraphy
Year Published: 2017

The effect of lithology on valley width, terrace distribution, and coarse sediment provenance in a tectonically stable catchment with flat-lying stratigraphy

How rock resistance or erodibility affects fluvial landforms and processes is an outstanding question in geomorphology that has recently garnered attention owing to the recognition that the erosion rates of bedrock channels largely set the pace of landscape evolution. In this work, we evaluate valley width, terrace distribution, and sediment...

Amanda Keen-Zebert; Hudson, Mark R.; Stephanie L. Shepherd; Evan A. Thaler
Keen-Zebert, A., Hudson, M.R., Shepherd, S.L., and Thaler, E., 2017, The effect of lithology on valley width, terrace distribution, and coarse sediment provenance in a tectonically stable catchment with flat-lying stratigraphy: Earth Surface Processes and Landforms, doi:10.1002/esp.4116.
Geospatial analysis identifies critical mineral-resource potential in Alaska
Year Published: 2017

Geospatial analysis identifies critical mineral-resource potential in Alaska

Alaska consists of more than 663,000 square miles (1,717,000 square kilometers) of land—more than a sixth of the total area of the United States—and large tracts of it have not been systematically studied or sampled for mineral-resource potential. Many regions of the State are known to have significant mineral-resource potential, and there are...

Karl, Susan; Labay, Keith A.
Karl, S.M., and Labay, K.A., Geospatial analysis identifies critical mineral-resource potential in Alaska: U.S. Geological Survey Fact Sheet 2017–3012, 4 p., https://doi.org/10.3133/fs20173012.
Regional patterns of Mesozoic-Cenozoic magmatism in western Alaska revealed by new U-Pb and 40Ar/39Ar ages: Chapter D in Studies by the U.S. Geological Survey in Alaska, vol. 15
Year Published: 2017

Regional patterns of Mesozoic-Cenozoic magmatism in western Alaska revealed by new U-Pb and 40Ar/39Ar ages: Chapter D in Studies by the U.S. Geological Survey in Alaska, vol. 15

In support of regional geologic framework studies, we obtained 50 new argon-40/argon-39 (40Ar/39Ar) ages and 33 new uranium-lead (U-Pb) ages from igneous rocks of southwestern Alaska.

Bradley, Dwight C.; Miller, Marti L.; Friedman, Richard M.; Layer, Paul W.; Bleick, Heather A.; Jones, III, James V.; Box, Steven E.; Karl, Susan M.; Shew, Nora B.; White, Timothy S.; Till, Alison B.; Dumoulin, Julie A.; Bundtzen, Thomas K.; O'Sullivan, Paul B.; Ullrich, Thomas D.
Bradley, D.C., Miller, M.L., Friedman, R.M., Layer, P.W., Bleick, H.A., Jones, J.V., III, Box, S.E., Karl, S.M., Shew, N.B., White, T.S., Till, A.B., Dumoulin, J.A., Bundtzen, T.K., O’Sullivan, P.B., and Ullrich, T.D., 2017, Regional patterns of Mesozoic-Cenozoic magmatism in western Alaska revealed by new U-Pb and <sup>40</sup>Ar/<sup>39</sup>Ar ages, in Dumoulin, J.A., ed., Studies by the U.S. Geological Survey in Alaska, vol. 15: U.S. Geological Survey Professional Paper 1814–D, 48 p., https://doi.org/10.3133/pp1814D.
Geochemical and geochronologic data from the Hall Creek caldera, Toiyabe Range, Nevada
Year Published: 2017

Geochemical and geochronologic data from the Hall Creek caldera, Toiyabe Range, Nevada

The magmatic, tectonic, and topographic evolution of what is now the northern Great Basin remains controversial, notably the temporal and spatial relation between magmatism and extensional faulting. This controversy is exemplified in the northern Toiyabe Range of central Nevada, where previous geologic mapping suggested the presence of a caldera...

Colgan, Joseph P.; Henry, Christopher D.
Colgan, J.P., and Henry, C.D., 2017, Geochemical and geochronologic data from the Hall Creek caldera, Toiyabe Range, Nevada: U.S. Geological Survey data release, https://doi.org/10.5066/F7JD4TX8.
Eruptive history, geochronology, and post-eruption structural evolution of the late Eocene Hall Creek Caldera, Toiyabe Range, Nevada
Year Published: 2017

Eruptive history, geochronology, and post-eruption structural evolution of the late Eocene Hall Creek Caldera, Toiyabe Range, Nevada

The magmatic, tectonic, and topographic evolution of what is now the northern Great Basin remains controversial, notably the temporal and spatial relation between magmatism and extensional faulting. This controversy is exemplified in the northern Toiyabe Range of central Nevada, where previous geologic mapping suggested the presence of a caldera...

Colgan, Joseph P.; Henry, Christopher D.
Colgan, J.P., and Henry, C.D., 2017, Eruptive history, geochronology, and post-eruption structural evolution of the late Eocene Hall Creek Caldera, Toiyabe Range, Nevada: U.S. Geological Survey Professional Paper 1832, 44 p., https://doi.org/10.3133/pp1832.
Filter Total Items: 2
USGS science for a changing world logo
March 12, 2016

Hydrologic modeling and analysis tools are important components of NAWQA studies. The types of modeling and analysis tools that play a large role in NAWQA include: Statistical models and analyses, Geographic information system (GIS) analyses, Process-based models, and Hybrid statistical, GIS, and process-based models.

Screenshot of the software FLASH
March 7, 2011

FLASH (Flow-Log Analysis of Single Holes) is a computer program for the analysis of borehole vertical flow logs.

Filter Total Items: 21
2016 (approx.)

This video will provide a brief history and purpose for one of the oldest streamgages in Indiana. The gage is at the Wabash River at Lafayette, Indiana. The site number is 03335500. This video was produced at the request of the West Lafayette Parks Department where this historic gage is located. A QR code is displayed on an interpretive plaque next to the gage which is located in a high profile location within a city park adjacent to Purdue University. Park visitors can view a brief video on their smart phone which will educate them on the history of the gage and provide them with information on how to obtain current readings. The USGS WaterAlert text or email notifications is also featured. Our goal is to better educate the public on the importance of USGS streamgages in Indiana and the data we provide to the nation.

Some material in this video is copyrighted and for use by USGS only. Contact Producer for details.

View of the Rio Brazos river with green trees and blue sky as the backdrop.
October 17, 2016

Hydrologic technician Lindsay Hastings took this photo of the Rio Brazos near Tierra Amarilla, New Mexico during her first field trip as a streamgager with the New Mexico Water Science Center. Did you know that New Mexico was the birth place of streamgaging? The USGS began collecting streamflow information in 1889 when the first streamgage was established on the Rio Grande in New Mexico, about 80 miles from where this photo was taken. Streamflow data are used for a variety of reasons including; drought monitoring, flood forecasting, and water-allocation permitting. These data are available to the public and can be found on the NWIS (National Water Information Systems) website.   

Photo of USGS scientist collecting noble gas sample from spring site near Roaring Judy, Colorado. 
July 2016 (approx.)

USGS scientist collects noble gas sample from spring site near Roaring Judy, Colorado. Groundwater discharge that flows into the Upper Colorado River Basin varies in response to drought, which is likely due to aquifer systems that contain relatively young groundwater, according to a new U.S. Geological Survey study

Photo of a spring sampling location along Little Sandy River in southern Wyoming.
July 2016 (approx.)

Spring sampling location along Little Sandy River in southern Wyoming. Groundwater discharge that flows into the Upper Colorado River Basin varies in response to drought, which is likely due to aquifer systems that contain relatively young groundwater, according to a new U.S. Geological Survey study

Photo of water quality and sampling equipment deployed at spring site near Roaring Judy, Colorado.
July 2016 (approx.)

Water quality and sampling equipment deployed at spring site near Roaring Judy, Colorado. Groundwater discharge that flows into the Upper Colorado River Basin varies in response to drought, which is likely due to aquifer systems that contain relatively young groundwater, according to a new U.S. Geological Survey study

Photo of USGS scientists monitoring the water quality off a bridge near Sedgwick, Kansas
July 2016 (approx.)

USGS scientists monitor the water quality off a bridge near Sedgwick, Kansas. A new USGS study shows that water quality on the Little Arkansas River and in the Equus Beds aquifer has not substantially changed since 2007 recharge activities began in the Equus Beds aquifer.

Photo of the City of Wichita's Equus Beds Aquifer Storage and Recovery Phase II river intake structure near Sedgwick, Kansas.
July 2016 (approx.)

The City of Wichita's Equus Beds Aquifer Storage and Recovery Phase II river intake structure near Sedgwick, Kansas. A new USGS study shows that water quality on the Little Arkansas River and in the Equus Beds aquifer has not substantially changed since 2007 recharge activities began in the Equus Beds aquifer.

Photo of a temporary streamgage installed by the USGS on the Brazos River near Brazoria, Texas.
June 1, 2016

Temporary streamgage installed by the USGS on the Brazos River near Brazoria, Texas. Rapidly deployable streamgages can be installed temporarily to provide emergency managers with additional information needed to help protect public safety.

Photo of USGS scientist installing a temporary streamgage on the Brazos River near West Columbia, Texas.
June 1, 2016

USGS scientist Jody Avant installs a temporary streamgage on the Brazos River near West Columbia, Texas. Rapidly deployable streamgages can be installed temporarily to provide emergency managers with additional information needed to help protect public safety.

Photo of a temporary streamgage installed by the USGS on the Brazos River near West Columbia, Texas.
June 1, 2016

Temporary streamgage installed by the USGS on the Brazos River near West Columbia, Texas. Rapidly deployable streamgages can be installed temporarily to provide emergency managers with additional information needed to help protect public safety.

A family enjoys paddleboarding at Schreiner Park during spring break in Kerrville, Texas.
March 17, 2016

Cool, clear rivers of the Texas Hill Country attract visitors for many recreational opportunities. Here, a family enjoys paddleboarding at Schreiner Park during spring break in Kerrville, Texas.

The new USGS Texas Water Dashboard is a cutting-edge USGS map that provides critical current water information and National Weather Service forecast data at your fingertips on a desktop, smartphone or other mobile device. Understanding weather and streamflow can help determine the best places to go boating, fishing or hiking.

Filter Total Items: 18
Photo of Flooding on Mississippi River in December 2015
October 13, 2016

An assessment of the flooding that occurred in the Meramec River Basin from December 2015–January 2016 is available in a new report from the U.S. Geological Survey. The report includes peak stages and streamflows, historical comparisons and flood-frequency statistics from the record flood.

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.

USGS: Science for a changing world
August 11, 2016

Two new streamgages recently installed by the U.S. Geological Survey in the cities of Greenfield and Elwood, Indiana will provide continuous, real-time streamflow and water level information in areas that have demonstrated a need for reliable flood warning and flood-related data.  

USGS logo
June 21, 2016

A new report about how groundwater quality and quantity has changed in and around Gaines, Terry and Yoakum counties, Texas is now available from the U.S. Geological Survey.

Photo of a temporary streamgage installed by the USGS on the Brazos River near West Columbia, Texas.
June 1, 2016

Reporters: Do you want to interview USGS scientists as they measure flooding? Please contact Jennifer LaVista.

Texas Water Dashboard map showing streamflow and weather conditions for May 27, 2016.
May 27, 2016

Reporters: Do you want to interview USGS scientists as they measure flooding? Please contact Jennifer LaVista.

Image: Key Bridge
March 22, 2016

Explore America's streams and rivers from your computer or mobile device.

Drought effects at Trinity Lake
May 28, 2015

Although record low precipitation has been the main driver of one of the worst droughts in California history, abnormally high temperatures have also played an important role in amplifying its adverse effects, according to a recent study by the U.S. Geological Survey and university partners.

Filter Total Items: 2