Unified Interior Regions

California

The Southwest Region includes California, Nevada, and Arizona. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

States L2 Landing Page Tabs

Filter Total Items: 416
Date published: November 19, 2018
Status: Completed

Simulation of Water Resources Management in the Pajaro Valley

Two key hydrologic issues in all coastal aquifer systems are the delineation and the management of the renewable water resources. The proper development and management of the renewable resources helps to minimize ground-water mining of the lower aquifer systems, and minimizes overdraft and seawater intrusion of the upper aquifer system while maximizing the sustainable yield of the renewable...

Date published: November 19, 2018
Status: Active

California Oil, Gas, and Groundwater (COGG) Program

The USGS California Water Science Center is working in partnership with state and federal agencies to answer the following questions about oil and gas development and groundwater resources:

Date published: November 19, 2018
Status: Completed

Hydrogeologic Characterization of the Modesto Area Ground-Water Basin and Evaluation of Water Resource Management Alternatives

Strategies for managing local water supplies and ground-water quality are being formulated and evaluated by the Stanislaus-Tuolumne River Groundwater Basin Association (STRGBA). 

Contacts: Steven Phillips
Date published: November 19, 2018
Status: Active

San Joaquin Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered continuous oil and gas resources of the Monterey Formation, San Joaquin Basin Province 5010.

    Date published: November 19, 2018
    Status: Active

    Sacramento Basin Oil and Gas Assessments

    The U.S. Geological Survey completed the following assessments of undiscovered natural gas resources of the Sacramento Basin Province of California 5008.

      Date published: November 16, 2018
      Status: Active

      Wildfires and Climate

      Over the last several decades, both the incidence of large wildfires and the duration of the wildfire season across much of the United States have increased (Westerling and others, 2006, American Water Works Assn, 2008; Finco and others, 2012). Future wildfire projections based on forecasted climate scenarios indicate both an increase in the expected severity of wildfires, and an...

      Date published: November 16, 2018
      Status: Completed

      Water-Quality Inventory Pesticides in the Golden Gate National Recreation Area

      In 1998, all urban creeks in the San Francisco Bay Area were added to the Clean Water Act Section 303d list due to known or suspected diazinon impairment. Diazinon is an organophosphorus insecticide used on lawns, and fruit and vegetables. This pesticide has since been "phased out" and has not been available for purchase since late 2004. Diazinon use is declining and is being replaced by other...

      Date published: November 15, 2018
      Status: Active

      Variability of Salinity and Temperature In San Francisco Bay

      The USGS has been collecting specific conductance (salinity) and water temperature data in San Francisco Bay (SF Bay) since 1990. Data are typically collected at 5-10 fixed locations throughout the bay, every fifteen minutes, every minute of the day.

      Date published: November 15, 2018
      Status: Active

      High-Speed Mapping of Nutrient Distributions and Water Quality Survey - Lower South San Francisco Bay

      This project aims to characterize spatial heterogeneity for key water quality parameters, and pilot the use of underway-flowthrough mapping of biogeochemical properties as a cost-effective approach to monitoring. 

      Date published: November 15, 2018
      Status: Active

      Delta Regional Monitoring Program: Current-use Pesticides

      This study will utilize the unique analytical capabilities of the USGS Pesticide Fate Research Group (PFRG), Organic Chemistry Research Laboratory (OCRL) to assess the occurrence of a large suite of understudied, current-use pesticides and pesticide degradates in surface waters entering the Sacramento/San Joaquin Delta. 

      Contacts: James Orlando
      Date published: November 15, 2018
      Status: Active

      San Francisco Bay Area - East Bay (BALT1) Site near Castro Valley, CA

      Landslides in the San Francisco Bay area (SFBA) of California impact people, infrastructure, and the environment, and are commonly induced by intense or prolonged rainfall associated with strong winter storms...

      Contacts: Brian Collins
      Date published: November 15, 2018
      Status: Completed

      Assessment of Baseline Conditions in Liberty Cut

      Monitoring habitat quality in the San Francisco Estuary (SFE) and Sacramento-San Joaquin Delta has been limited to mostly monthly discrete measurements of biologically relevant parameters (e.g. phytoplankton, dissolved organic matter (DOM), nutrients) that cannot fully characterize the physical and biogeochemical variability.

      Contacts: Bryan Downing
      Filter Total Items: 550
      Date published: January 1, 2019

      CoSMoS (Coastal Storm Modeling System) Central California v3.1 water-level projections: average conditions in San Mateo County

      This data contains model-derived total water levels (in meters) for the sea-level rise (SLR) and storm condition indicated.
      The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. Projecti

      Date published: January 1, 2019

      CoSMoS (Coastal Storm Modeling System) Central California v3.1 water-level projections: 20-year storm in San Mateo County

      This data contains model-derived total water levels (in meters) for the sea-level rise (SLR) and storm condition indicated.
      The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. Projecti

      Date published: January 1, 2019

      Structure-from-motion point cloud of Mud Creek, Big Sur, California, 2017-05-19

      Presented here is a point cloud collected by the U.S. Geological Survey (USGS) using an oblique plane-mounted camera system, covering the area of the Mud Creek landslide on California State Route 1 (SR1), Mud Creek, Big Sur, California. The point cloud is referenced to previously published lidar data and contains RGB information as well as XYZ. Point Cloud Coordinates are in NAD8

      Date published: January 1, 2019

      CoSMoS (Coastal Storm Modeling System) Central California v3.1 water-level projections: 100-year storm in San Francisco County

      This data contains model-derived total water levels (in meters) for the sea-level rise (SLR) and storm condition indicated.
      The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. Projecti

      Date published: January 1, 2019

      Faults—Point Sur to Point Arguello, California

      This part of DS 781 presents data for the faults of the Point Sur to Point Arguello, California, region. The vector data file is included in the “Faults_PointSurToPointArguello.zip,” which is accessible from https://doi.org/10.5066/P97CZ0T7.
      Faults in the Point Sur to Point Arguello region are identified on seismic-reflection data based on...

      Date published: January 1, 2019

      Folds—Point Sur to Point Arguello, California

      This part of DS 781 presents data for the folds of the Point Sur to Point Arguello, California, region. The vector data file is included in the “Folds_PointSurToPointArguello.zip,” which is accessible from https://doi.org/10.5066/P97CZ0T7.
      Folds in the Point Sur to Point Arguello region are identified on seismic-reflection data based on...

      Date published: January 1, 2019

      CoSMoS (Coastal Storm Modeling System) Central California v3.1 wave-hazard projections: average conditions in San Luis Obispo County

      This data contains maximum model-derived significant wave height (in meters) for the sea-level rise (SLR) and storm condition indicated.
      The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenar

      Date published: January 1, 2019

      CoSMoS (Coastal Storm Modeling System) Central California v3.1 flood depth and duration projections: average conditions in San Luis Obispo County

      This data contains maximum depth of flooding (cm) in the region landward of the present-day shoreline for the sea-level rise (SLR) and storm condition indicated.
      The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-le

      Date published: January 1, 2019

      CoSMoS (Coastal Storm Modeling System) Central California v3.1 flood depth and duration projections: 1-year storm in San Luis Obispo County

      This data contains maximum depth of flooding (cm) in the region landward of the present-day shoreline for the sea-level rise (SLR) and storm condition indicated.
      The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-le

      Date published: January 1, 2019

      Fishes of Ryer Island, Suisun Bay, California, 2016-2017

      This data set includes field data for fishes sampled using gill nets and otter trawls during daylight hours in and around Ryer Island, Suisun Bay, California. This data release includes all measured environmental parameters and fish taxa included in the analysis.

      Date published: January 1, 2019

      Structure-from-motion point cloud of Mud Creek, Big Sur, California, 2017-12-21

      Presented here is a point cloud collected by the U.S. Geological Survey (USGS) using an oblique plane-mounted camera system, covering the area of the Mud Creek landslide on California State Route 1 (SR1), Mud Creek, Big Sur, California. Point cloud is referenced to previously published lidar data and contains RGB information as well as XYZ. Point cloud coordinates are in NAD83 UTM

      Date published: January 1, 2019

      CoSMoS (Coastal Storm Modeling System) Central California v3.1 flood-hazard projections: 1-year storm in San Francisco County

      This data contains geographic extents of projected coastal flooding, low-lying vulnerable areas, and maximum/minimum flood potential (flood uncertainty) associated with the sea-level rise (SLR) and storm condition indicated.
      The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-ind

      Filter Total Items: 416
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      Year Published: 2012

      Using a non-physical behavioural barrier to alter migration routing of juvenile Chinook salmon in the Sacramento–San Joaquin River Delta

      Anthropogenic alterations to river systems, such as irrigation and hydroelectric development, can negatively affect fish populations by reducing survival when fish are routed through potentially dangerous locations. Non-physical barriers using behavioural stimuli are one means of guiding fish away from such locations without obstructing water flow...

      Perry, R.W.; Romine, J.G.; Adams, N.S.; Blake, A.R.; Burau, J.R.; Johnston, S.V.; Liedtke, T.L.

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      Year Published: 2012

      Trimming the UCERF2 hazard logic tree

      The Uniform California Earthquake Rupture Forecast 2 (UCERF2) is a fully time‐dependent earthquake rupture forecast developed with sponsorship of the California Earthquake Authority (Working Group on California Earthquake Probabilities [WGCEP], 2007; Field et al., 2009). UCERF2 contains 480 logic‐tree branches reflecting choices among nine...

      Porter, Keith A.; Field, Edward H.; Milner, Kevin

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      Year Published: 2012

      Survival and migration route probabilities of juvenile Chinook salmon in the Sacramento-San Joaquin River Delta during the winter of 2009-10

      Juvenile Chinook salmon (Oncorhynchus tshawytscha) emigrating from natal tributaries of the Sacramento River may use a number of migration routes to negotiate the Sacramento-San Joaquin River Delta (hereafter, "the Delta"), each of which may influence their probability of surviving. We applied a mark-recapture model to data from acoustically...

      Perry, Russell W.; Romine, Jason G.; Brewer, Scott J.; LaCivita, Peter E.; Brostoff, William N.; Chapman, Eric D.

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      Year Published: 2012

      2011 Georgiana Slough non-physical barrier performance evaluation project report

      The Sacramento River and its tributaries support populations of anadromous fish species including winter-run, spring-run, fall-run, and late fall–run Chinook salmon (Oncorhynchus tshawytscha); and steelhead (O. mykiss). Several of these species are listed as threatened or endangered under the California Endangered Species Act (CESA), federal...

      Reeves, Ryan R.; McQuirk, Jacob; Ameri, Khalid; Perry, Russell W.; Romine, Jason G.; Liedtke, Theresa L.; Burau, Jon R.; Blake, Aaron R.; Fitzer, Chris; Smith, Natalie; Pagliughi, Steve; Johnston, Sam; Kumagai, Kevin; Cash, Kenneth

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      Year Published: 2012

      Objective definition of rainfall intensity-duration thresholds for the initiation of post-fire debris flows in southern California

      Rainfall intensity–duration (ID) thresholds are commonly used to predict the temporal occurrence of debris flows and shallow landslides. Typically, thresholds are subjectively defined as the upper limit of peak rainstorm intensities that do not produce debris flows and landslides, or as the lower limit of peak rainstorm intensities that initiate...

      Staley, Dennis; Kean, Jason W.; Cannon, Susan H.; Schmidt, Kevin; Laber, Jayme L.
      Objective definition of rainfall intensity-duration thresholds for the initiation of post-fire debris flows in southern California; 2012; Article; Journal; Landslides; Dennis Staley; Jason W Kean; Susan H Cannon; Schmidt, Kevin M.; Laber, Jayme L.

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      Year Published: 2012

      On the reported ionospheric precursor of the Hector Mine, California earthquake

      Using Global Positioning System (GPS) data from sites near the 16 Oct. 1999 Hector Mine, California earthquake, Pulinets et al. (2007) identified anomalous changes in the ionospheric total electron content (TEC) starting one week prior to the earthquake. Pulinets (2007) suggested that precursory phenomena of this type could be useful for...

      Thomas, J.N.; Love, J.J.; Komjathy, A.; Verkhoglyadova, O.P.; Butala, M.; Rivera, N.
      On the reported ionospheric precursor of the Hector Mine, California earthquake; 2012; Article; Journal; Geophysical Research Letters; Thomas, J. N.; Love, J. J.; Komjathy, A. ; Verkhoglyadova, O. P.; Butala, M. ; Rivera, N.

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      Year Published: 2012

      Effects of Iron Gate Dam discharge and other factors on the survival and migration of juvenile coho salmon in the lower Klamath River, northern California, 2006-09

      Current management of the Klamath River includes prescribed minimum discharges intended partly to increase survival of juvenile coho salmon during their seaward migration in the spring. To determine if fish survival was related to river discharge, we estimated apparent survival and migration rates of yearling coho salmon in the Klamath River...

      Beeman, John; Juhnke, Steven; Stutzer, Greg; Wright, Katrina
      Effects of Iron Gate Dam discharge and other factors on the survival and migration of juvenile coho salmon in the lower Klamath River, northern California, 2006-09; 2012; OFR; 2012-1067; Beeman, John ; Juhnke, Steven ; Stutzer, Greg ; Wright, Katrina

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      Year Published: 2012

      On the reported ionospheric precursor of the 1999 Hector Mine, California earthquake

      Using Global Positioning System (GPS) data from sites near the 16 Oct. 1999 Hector Mine, California earthquake, Pulinets et al. (2007) identified anomalous changes in the ionospheric total electron content (TEC) starting one week prior to the earthquake. Pulinets (2007) suggested that precursory phenomena of this type could be useful for...

      Thomas, Jeremy N.; Love, Jeffrey J.; Komjathy, Attila; Verkhoglyadova, Olga P.; Butala, Mark; Rivera, Nicholas

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      Year Published: 2012

      Detection probability of an in-stream passive integrated transponder (PIT) tag detection system for juvenile salmonids in the Klamath River, northern California, 2011

      A series of in-stream passive integrated transponder (PIT) detection antennas installed across the Klamath River in August 2010 were tested using tagged fish in the summer of 2011. Six pass-by antennas were constructed and anchored to the bottom of the Klamath River at a site between the Shasta and Scott Rivers. Two of the six antennas...

      Beeman, John W.; Hayes, Brian; Wright, Katrina
      Detection probability of an in-stream passive integrated transponder (PIT) tag detection system for juvenile salmonids in the Klamath River, northern California, 2011; 2012; OFR; 2012-1001; Beeman, John W.; Hayes, Brian ; Wright, Katrina

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      Year Published: 2012

      Simulated effects of dam removal on water temperatures along the Klamath River, Oregon and California, using 2010 Biological Opinion flow requirements

      Computer model simulations were run to determine the effects of dam removal on water temperatures along the Klamath River, located in south-central Oregon and northern California, using flow requirements defined in the 2010 Biological Opinion of the National Marine Fisheries Service. A one-dimensional, daily averaged water temperature model (River...

      Risley, John C.; Brewer, Scott J.; Perry, Russell W.
      Simulated effects of dam removal on water temperatures along the Klamath River, Oregon and California, using 2010 Biological Opinion flow requirements; 2012; OFR; 2011-1311; Risley, John C.; Brewer, Scott J.; Perry, Russell W.

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      Year Published: 2012

      Design and quantification of an extreme winter storm scenario for emergency preparedness and planning exercises in California

      The USGS Multihazards Project is working with numerous agencies to evaluate and plan for hazards and damages that could be caused by extreme winter storms impacting California. Atmospheric and hydrological aspects of a hypothetical storm scenario have been quantified as a basis for estimation of human, infrastructure, economic, and environmental...

      Dettinger, M.D.; Martin, Ralph F.; Hughes, M.; Das, Tapash; Neiman, P.; Cox, Dale A.; Estes, G.; Reynolds, D.; Hartman, R.; Cayan, Daniel; Jones, L.

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      Year Published: 2012

      FOP 2012 stop, Honey Lake fault, Doyle, CA

      The Honey Lake fault system (HLFS) strikes north-northwestward across Long Valley near Doyle, CA and is part of a network of active, dextral strike-slip faults in the northern Walker Lane (Figure 1). Geologic investigations of a right-laterally offset terrace riser along the north bank of Long Valley Creek, which we refer to as site 1 (Figure 2),...

      Seitz, Gordon G.; Gold, Ryan; Briggs, Richard W.; Crone, Anthony; Angster, Steve
      FOP 2012 stop, Honey Lake fault, Doyle, CA; 2012; Article; Book; Guidebook: neotectonics of the Lake Tahoe and Carson and Sierra Valleys, F.O.P. 2012 - Sept. 13-16: friends of the Pleistocene Pacific cell meeting; Gold, Ryan; Briggs, Richard ; Crone, Anthony ; Angster, Steve

      Filter Total Items: 1,120
      A dense field of wildflowers with coastal hills and the ocean in the background
      April 6, 2019

      Wildflowers in the Channel Islands

      Spring wildflowers captured on California's Channel Islands.

      The USGS Western Ecological Research Center's Dr. Kathryn McEachern studies plant ecology and restoration on the Channel Islands. Learn more here.

      Rear-arc basalt lava outcrop
      April 2, 2019

      Rear-arc basalt lava outcrop

      A 3-4m (10-12 ft) high outcrop of basalt lava, part of a broader lava flow. These flows were erupted about 300,000 years ago following basalt dike intrusions in a rear-arc region of northern California. The eruptions of three of these flows are thought to have taken place within several hundred years of each other.

      March 28, 2019

      PubTalk 3/2019 - Land Subsidence

      Title: Land Subsidence: The Lowdown on the Draw-down

      The link between groundwater use and sinking landscapes

      • What is land subsidence, where does it happen, and why does it matter?
      • How do weather and land use affect land subsidence in California?
      • Why are we optimistic about the future of land subsidence in California?
      An enormous rock in the ocean viewed from above, with the coast behind and sunlight on the water.
      March 22, 2019

      Morro Bay from the air

      Passing Morro Bay during an aerial photographic survey.

      The Seabird Studies Team at the USGS Western Ecological Research Center is conducting aerial photographic surveys of the ocean off central and southern California to create comprehensive maps of seabird and marine mammal distributions.

      A green landmass on the coast in the background behind the wing of a small airplane.
      March 21, 2019

      Passing Diablo Canyon Power Plant during aerial survey test flight

      Passing Diablo Canyon Power Plant during a test flight in March 2019, in preparation for aerial photographic surveys.

      The Seabird Studies Team at the USGS Western Ecological Research Center is conducting aerial photographic surveys of the ocean off central and southern California to create comprehensive maps of seabird and marine mammal distributions.

      Two people kneeling to collect a carcass
      March 20, 2019

      Measuring wildlife mortality

      Scientists collect carcasses at a wind energy facility to estimate total wildlife mortality at a site.

      An illustration shows how aerial photographs are taken around a landslide in order to use them in computer models.
      March 14, 2019

      Mud Creek landslide flight path example

      USGS photographs taken from a contracted small airplane are used to build three-dimensional representations of the hillslopes of Big Sur, California, as shown here for the Mud Creek landslide site in 2017.  Blue symbols show the locations of individual photos obtained on the flight, and the gray area shows the hillslope landscape created from the photos using Structure-

      ...
      A shaded, colored illustration that shows how much movement occurred on a hillslope thorugh time.
      March 14, 2019

      Changes to Mud Creek digital surface models

      Computer images showing the coastal cliff area of Mud Creek on the Big Sur coastline, central California, where on May 20, 2017 a catastrophic landslide destroyed over 400 meters of scenic California State Highway 1. These illustrations show the changes to the digital surface models of Mud Creek during the three primary phases of the landslide: (a) before, (b) immediately

      ...
      Adaptive Management Forum
      February 28, 2019

      Adaptive Management Forum Brochure

      Adaptive Management Forum Brochure.This conference was held at the University of California, Davis on February 5-6, 2019.

      Underwater map illustration shows a canyon carved into the seafloor and labeled with the location of instrument installations.
      February 15, 2019

      Map of instrument mooring locations, Monterey Canyon

      Map of locations of instrument moorings where we collected time-series oceanographic data from the Monterey Canyon, offshore of Montery, California, from October 2015 - March 2017

      Rain clouds and red sky over the Northern Bristol Mountains in the Mojave Desert, California
      February 14, 2019

      Twilight in the Northern Bristol Mountains

      Rain clouds at twilight over the Norhtern Bristol Mountains. THese types of winter storms provide water to the desert ecosystem, but are not usually intense enough to transport sediment or do other geomorphic work. This image was captured during geologic mapping of surficial geologic materials in order to better understand the Quaternary (younger than ~2.5 million years)

      ...
      examples of fieldwork done in the Sacramento-San Joaquin River Delta
      December 31, 2018

      Fieldwork in California’s Sacramento-San Joaquin River Delta

      Top row, left to right: Cordell Johnson (left) and Evan Dailey use the USGS R/V Fast Eddy to collect water samples. Cordell Johnson (left) and Jessie Lacy prepare to deploy a tripod holding instruments to measure water level, currents, and suspended sediment. USGS divers Jenny McKee (left) and Tim Elfers assemble the gear they will need to measure vegetation

      ...
      Filter Total Items: 972
      USGS
      October 17, 2016

      A new study offers the most sophisticated analyses to date on how Los Angeles-area groundwater supplies are replenished. The analyses provide water managers with a clearer understanding of the sources and amount of available groundwater in the region – information that is important for planning and management of the vital resource.

      Photo showing the Great Basin area
      October 11, 2016

      Large precipitation events that occur about every 10 years are a critical source of recharge for replenishing groundwater resources, according to a new study by the U.S. Geological Survey and the Bureau of Reclamation.

      Golden Eagle in flight
      September 28, 2016

      Roughly over a quarter of the golden eagles killed at the Altamont Pass Wind Resource Area in Northern California from 2012-2014 were recent immigrants to the local population, according to research led by the U.S. Geological Survey. 

      September 26, 2016 earthquake locations (circles) of ongoing swarm north of Salton Buttes, California. SCSN seismometers located
      September 26, 2016

      An earthquake swarm started on 26 Sep 2016, 04:03AM PDT, and is ongoing in the Brawley Seismic Zone near the southern terminus of the San Andreas Fault and about 12 km (7.5 mi) north of Salton Buttes.

      A sea otter female and large pup, counted during the range-wide survey, feed on kelp crabs.
      September 19, 2016

      SANTA CRUZ, California — The southern sea otter, Enhydra lutris nereis, continues its climb toward recovery, according to the annual count released today by the U.S. Geological Survey and partners.

      Model of reservoirs underneath Long Valley Caldera...
      September 13, 2016

      A picture is worth a thousand words—USGS Post Doctoral Fellow Jared Peacock's new 3D geophysical model for the Long Valley Caldera and Mammoth Mountain reveals a subsurface marked by active hydrothermal reservoirs (hot water and fluids), bodies of partial melt (molten rock), and rock that has been pervasively altered to clay by fluids from a now extinct hydrothermal reservoir.

      map of Alameda, Calif. with various shades of red indicating tsunami evacuation zones
      September 12, 2016

      Tsunami evacuation planning in coastal communities is typically based on maximum evacuation zones that reflect a combination of all potential extreme tsunamis. However, in the case of a smaller tsunami, this approach may result in more people being evacuated than need to be, and in doing so, may overly disrupt the local economy, and strain resources needed during emergency response.

      A picture of collecting dissolved gasses
      September 9, 2016

      The buzzing of an alarm clock marks the start of another day in the field for California Water Science Center scientists Mike Wright, David Dillon, and Josh Johnson. The scientists rub the sleep out of their eyes, wolf down breakfast from the motel lobby, and hit the road. By 7 a.m., the temperature is already approaching 80 degrees and climbing in Jurupa Valley – and it's only April.

      Glacier National Park
      September 7, 2016

      A team of USGS scientists spent 10 days in the wilderness, exploring one of the fastest-moving faults in America

      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.

      Filter Total Items: 238