Unified Interior Regions

Washington

Washington's Puget Sound is a complex ecosystem directly adjacent to a robust metropolitan area that scientists from the USGS Western Fisheries Research Center study. Recent surveys have looked at juvenile surf smelt, a key link in the food web that are consumed by predators such as salmon, orca, and many marine birds. 

Western Fisheries Research Center

Western Fisheries Research Center

Research at the WFRC focuses on the environmental factors responsible for the creation, maintenance, and regulation of fish populations including their interactions in aquatic communities and ecosystems. 

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Washington Water Science Center

Washington Water Science Center

The Water Science Center's mission is to collect, analyze and disseminate the impartial hydrologic data and information needed to wisely manage water resources for the people of the United States and the State of Washington.

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States L2 Landing Page Tabs

Filter Total Items: 267
Date published: April 20, 2020
Status: Active

Water Temperature Mapping in the Snoqualmie and Skykomish River Basins

Over the past two decades water temperatures in the Snoqualmie and Skykomish River basins has frequently exceeded temperature criteria established to protect Endangered Species Act-listed Chinook salmon, steelhead trout, and bull trout. These rivers combine in Monroe, WA to form the Snohomish River, the second largest producer of Chinook salmon in Puget Sound. The effects of high water...

Date published: April 17, 2020
Status: Active

The Response of Coastal Wetlands to Sea-level Rise: Understanding how Macroscale Drivers Influence Local Processes and Feedbacks

The purpose of this work is to advance our understanding of how coastal wetland responses to sea-level rise (SLR) within the conterminous United States are likely to vary as a function of local, regional, and macroscale drivers, including climate. Based on our interactions with managers and decision makers, as well as our knowledge of the current state of the science, we propose to: (a)...

Date published: April 8, 2020
Status: Completed

Hydrochemical Analysis of Groundwater in Jewel Cave National Monument

The Issue: The park’s landscape and geomorphology is characterized as a carbonate karst environment, with sinking streams and fast connections between surface water and groundwater, resulting in high vulnerability of contamination to groundwater. Now that subterranean lakes have been discovered in Jewel Cave, understanding the groundwater connection of the lakes therein to the...

Contacts: Andrew J Long
Date published: March 10, 2020
Status: Active

Weed-Suppressive Bacteria – Testing a Control Measure for Invasive Grasses in the West

Recent popular news has implied that Weed-Suppressive Bacteria (WSB) holds promise for cheatgrass control, yet a lack of peer-reviewed research exists to support this claim. USGS researchers stepped up to the challenge of objectively and rigorously evaluating the effectiveness of WSB for controlling exotic annual grasses, such as...

Date published: February 28, 2020
Status: Active

Walla Walla Groundwater

The Issue: Within the states of Washington and Oregon, the 1,777 mi2 Walla Walla River Basin (WWRB) is a complex hydrogeologic system with long-term water-level declines in regional aquifers and insufficient instream flows required for threatened and culturally important fish populations. The public and state resource management agencies need an improved...

Date published: February 7, 2020
Status: Completed

USGS science supporting the Elwha River Restoration Project

The Elwha River Restoration Project...

... has reconnected the water, salmon, and sediment of a pristine river and coast of the Olympic Peninsula of Washington. Coordinated by the National Park Service, restoration of the Elwha River included the removal of two large dams that had blocked salmon and sediment passage for almost 100 years. The largest dam removal in U.S. history began in...

Date published: November 29, 2019
Status: Completed

Using Video Imagery to Study Coastal Change: Whidbey Island

From May of 2018 through November of 2019, USGS scientists collected imagery from video cameras overlooking the coast along a beach on Whidbey Island, Island County at the northern boundary of Puget Sound in western Washington.

    Contacts: Eric Grossman
    Date published: September 6, 2019
    Status: Active

    PS-CoSMoS: Puget Sound Coastal Storm Modeling System

    The CoSMoS model is currently available for most of the California coast and is now being expanded to support the 4.5 million coastal residents of the Puget Sound region, with emphasis on the communities bordering the sound.

    Date published: June 17, 2019
    Status: Active

    Elwha River Restoration Project

    From 2011 to 2014, the Nation’s largest dam removal project to date took place in Washington State, allowing the Elwha River to once again flow unimpeded from its origin in the Olympic Mountains to the Strait of Juan de Fuca. Nearly 100 years of sediment (30 million tons) had accumulated behind two dams, and about two-thirds of that (20 million tons) was released, dramatically affecting the...

    Date published: June 17, 2019
    Status: Active

    Estuarine Ecosystem Recovery in Puget Sound

    A clean and abundant sediment supply is critical for building and maintaining viable estuarine and wetland habitats. However, in many coastal regions, dikes, levees, and dams have disconnected water and sediment supply to estuarine and wetland habitats, altering sedimentation patterns, water quality, and nutrient loads. Dike and dam removal have become important methods for restoring river and...

    Date published: May 30, 2019
    Status: Active

    Quantifying suspended-sediment load and transport characteristics in the Calawah and Upper Bogachiel Rivers, Washington

    The issue: Salmonid fisheries are an important cultural and economic activity and efforts to support a thriving fisheries industry remain a major priority for the Quileute Tribe on the Olympic Peninsula, Washington. Land use changes can have a profound influence on basin sediment production with direct effects on fisheries (Madej and Ozaki, 2009). Studies are needed to improve...

    Filter Total Items: 184
    Date published: January 1, 2019

    Beach topography of the Columbia River littoral cell, Washington and Oregon, 2017

    This portion of the USGS data release presents topography data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon, in 2017 (USGS Field Activity Number 2017-666-FA). Topographic profiles were collected by walking along survey lines with global navigation satellite system (GNSS) receivers mounted on backpacks. Prior to data collection, vertic

    Date published: January 1, 2019

    Beach topography of the Columbia River littoral cell, Washington and Oregon, 2015

    This portion of the USGS data release presents topography data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon, in 2015 (USGS Field Activity Number 2015-647-FA). Topographic profiles were collected by walking along survey lines with global navigation satellite system (GNSS) receivers mounted on backpacks. Prior to data collection, vertic

    Date published: January 1, 2019

    Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2015

    This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2015 (USGS Field Activity Number 2015-647-FA). Bathymetry data were collected using four personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The sonar sy

    Date published: January 1, 2019

    Beach topography of the Columbia River littoral cell, Washington and Oregon, 2014

    This portion of the USGS data release presents topography data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon, in 2014 (USGS Field Activity Number 2014-631-FA). Topographic profiles were collected by walking along survey lines with global navigation satellite system (GNSS) receivers mounted on backpacks. Prior to data collection, vertic

    Date published: January 1, 2019

    Beach topography of the Columbia River littoral cell, Washington and Oregon, 2019

    This portion of the USGS data release presents topography data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon, in 2019 (USGS Field Activity Number 2019-632-FA). Topographic profiles were collected by walking along survey lines with global navigation satellite system (GNSS) receivers mounted on backpacks. Prior to data collection, vertic

    Date published: January 1, 2019

    Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2014

    This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2014 (USGS Field Activity Number 2014-631-FA). Bathymetry data were collected using four personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The sonar sy

    Date published: January 1, 2019

    Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2019

    This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2019 (USGS Field Activity Number 2019-632-FA). Bathymetry data were collected using four personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The sonar sy

    Date published: January 1, 2019

    Floodplain data from the Elwha River in Olympic National Park, 1939-2013

    Floodplain characteristics were quantified for the Elwha River in Olympic National Park, Washington, USA, using orthophoto imagery taken between 1939-2013.

    Date published: January 1, 2019

    Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2017

    This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2017 (USGS Field Activity Number 2017-666-FA). Bathymetry data were collected using four personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The sonar sy

    Date published: January 1, 2019

    Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2016

    This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2016 (USGS Field Activity Number 2016-663-FA). Bathymetry data were collected using four personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The sonar sy

    Date published: January 1, 2019

    Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2018

    This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2018 (USGS Field Activity Number 2018-652-FA). Bathymetry data were collected using four personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The sonar sy

    Date published: January 1, 2019

    Digital elevation models (DEMs) of the Elwha River delta, Washington, July 2017

    This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta in July 2017 (USGS Field Activity Number 2017-638-FA). Nearshore bathymetry data were collected using two personal watercraft (PWCs) and a kayak equipped with single-beam echosounders and survey-grade global navigation satel

    Filter Total Items: 747
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    Year Published: 2018

    Evaluation of sockeye salmon after passage through an innovative upstream fish-passage system at Cle Elum Dam, Washington, 2017

    Executive SummaryThe Bureau of Reclamation (Reclamation) and the Washington State Department of Ecology (Ecology), working with the Yakima River Basin Water Enhancement Project Workgroup (composed of representatives of the Yakama Nation; Federal, State, county, and city governments; environmental organizations; and irrigation districts), developed...

    Kock, Tobias J.; Evans, Scott D.; Hansen, Amy C.; Perry, Russell W.; Hansel, Hal C.; Haner, Philip V.; Tomka, Ryan G.
    Kock, T.J., Evans, S.D., Hansen, A.C., Perry, R.W., Hansel, H.C., Haner, P.V., and Tomka, R.G., 2018, Evaluation of sockeye salmon after passage through an innovative upstream fish-passage system at Cle Elum Dam, Washington, 2017: U.S. Geological Survey Open-File Report 2018-1116, 30 p., https://doi.org/10.3133/ofr20181116.

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    Year Published: 2018

    Geoelectric hazard maps for the Pacific Northwest

    Maps of extreme value, horizontal component geoelectric field amplitude are constructed for the Pacific Northwest United States (and parts of neighboring Canada). Multidecade long geoelectric field time series are calculated by convolving Earth surface impedance tensors from 71 discrete magnetotelluric survey sites across the region with...

    Love, Jeffrey J.; Lucas, Greg M.; Kelbert, Anna; Bedrosian, Paul A.

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    Year Published: 2018

    Juvenile salmonid monitoring following removal of Condit Dam in the White Salmon River Watershed, Washington, 2017

    Condit Dam, at river kilometer 5.3 on the White Salmon River, Washington, was breached in 2011, and removed completely in 2012, providing anadromous salmonids with the opportunity to recolonize habitat blocked for nearly 100 years. Prior to dam removal, a multi-agency workgroup concluded that the preferred salmonid restoration alternative was to...

    Jezorek, Ian G.; Hardiman, Jill M.
    Jezorek, I.G., and Hardiman, J.M., 2018, Juvenile salmonid monitoring following removal of Condit Dam in the White Salmon River watershed, Washington, 2017: U.S. Geological Survey Open-File Report 2018-1106, 31 p. https://doi.org/10.3133/ofr20181106.

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    Year Published: 2018

    Infection by Nanophyetus salmincola and toxic contaminant exposure in out‐migrating steelhead from Puget Sound, Washington: Implications for early marine survival

    Out‐migrating steelhead Oncorhynchus mykiss from four Puget Sound rivers and associated marine basins of Puget Sound in Washington State were examined for the parasite, Nanophyetus salmincola in 2014 to determine whether recent trends in reduced marine survival are associated with the presence of this pathogen. A subset of...

    Chen, M.F.; O'Neill, S. M.; Carey, A. J.; Conrad, R. H.; Stewart, B. A.; Snekvik, K. R.; Ylitalo, G. M.; Hershberger, Paul
    Chen, M.F., S.M. O’Neill, A.J. Carey, R.H. Conrad, B.A. Stewart, K.R. Snekvik, G.M. Ylitalo, and P.K. Hershberger. 2018. Infection by Nanophyetus salmincola and toxic contaminant exposure in out‐migrating steelhead from Puget Sound, Washington: Implications for early marine survival. J. Aquat Anim Health 30(2): 103-118.

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    Year Published: 2018

    Effects of experimental removal of Barred Owls on population demography of Northern Spotted Owls in Washington and Oregon—2017 progress report

    Populations of Northern Spotted Owls (Strix occidentalis caurina; hereinafter referred to as Spotted Owl) are declining throughout this subspecies’ geographic range. Evidence indicates that competition with invading populations of Barred Owls (S. varia) has contributed significantly to those declines. A pilot study in California showed that...

    Wiens, J. David; Dugger, Katie M.; Lesmeister, Damon B.; Dilione, Krista E.; Simon, David C.
    Wiens, J.D., Dugger, K.M., Lesmeister, D.B., Dilione, K.E., and Simon, D.C., 2018, Effects of experimental removal of Barred Owls on population demography of Northern Spotted Owls in Washington and Oregon—2017 progress report: U.S. Geological Survey Open-File Report 2018–1086, 23 p., https://doi.org/10.3133/ofr20181086.

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    Year Published: 2018

    Distribution and seasonal differences in Pacific Lamprey and Lampetra spp eDNA across 18 Puget Sound watersheds

    Lampreys have a worldwide distribution, are functionally important to ecological communities and serve significant roles in many cultures. In Pacific coast drainages of North America, lamprey populations have suffered large declines. However, lamprey population status and trends within many areas of this region are unknown and such information is...

    Ostberg, Carl O.; Chase, Dorothy M.; Hayes, Michael C.; Duda, Jeffrey J.
    Ostberg, C.O., D.M. Chase, M.C. Hayes, and J.J. Duda. 2018. Distribution and seasonal differences in Pacific Lamprey and Lampetra spp eDNA across 18 Puget Sound watersheds. Peer J 6:e4496.

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    Year Published: 2018

    Relating river discharge and water temperature to the recruitment of age‐0 White Sturgeon (Acipenser transmontanus Richardson, 1836) in the Columbia River using over‐dispersed catch data

    The goals were to (i) determine if river discharge and water temperature during various early life history stages were predictors of age‐0 White Sturgeon, Acipenser transmontanus, recruitment, and (ii) provide an example of how over‐dispersed catch data, including data with many zero observations, can be used to better understand the effects...

    Counihan, Timothy D.; Chapman, Colin G.
    Counihan, T.D. and C.G. Chapman. 2018. Relating river discharge and water temperature to the recruitment of age-0 White Sturgeon (Acipenser transmontanus Richardson, 1836) in the Columbia River using over-dispersed catch data. J. Appl. Ichthyol. 34(2):279-289.

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    Year Published: 2018

    An epidemiological model of virus transmission in salmonid fishes of the Columbia River Basin

    We have developed a dynamic epidemiological model informed by records of viral presence and genotypes to evaluate potential transmission routes maintaining a viral pathogen in economically and culturally important anadromous fish populations. In the Columbia River Basin, infectious hematopoietic necrosis virus (IHNV) causes severe disease,...

    Ferguson, Paige F. B.; Breyta, Rachel; Brito, Ilana L.; Kurath, Gael; LaDeau, Shannon L.
    Ferguson, P.F.B., R. Breyta, I. Brito, G. Kurath, and S.L. LaDeau. 2018. An epidemiological model of virus transmission in salmonid fishes of the Columbia River Basin. Ecol. Model. 377: 1-15.

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    Year Published: 2018

    Passage survival of juvenile steelhead, coho salmon, and Chinook salmon in Lake Scanewa and at Cowlitz Falls Dam, Cowlitz River, Washington, 2010–16

    A multi-year evaluation was conducted during 2010–16 to evaluate passage survival of juvenile steelhead (Oncorhynchus mykiss), Chinook salmon (O. tshawytscha), and coho salmon (O. kisutch) in Lake Scanewa, and at Cowlitz Falls Dam in the upper Cowlitz River Basin, Washington. Reservoir passage survival was evaluated in 2010, 2011, and 2016, and...

    Liedtke, Theresa L.; Kock, Tobias J.; Hurst, William
    Liedtke, T.L., Kock, T.J., and Hurst, W., 2018, Passage survival of juvenile steelhead, coho salmon, and Chinook salmon in Lake Scanewa and at Cowlitz Falls Dam, Cowlitz River, Washington, 2010–16: U.S. Geological Survey Open-File Report 2018-1050, 44 p., https://doi.org/10.3133/ofr20181050.

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    Year Published: 2018

    Size, growth, and size‐selective mortality of subyearling Chinook Salmon during early marine residence in Puget Sound

    In marine ecosystems, survival can be heavily influenced by size‐selective mortality during juvenile life stages. Understanding how and when size‐selective mortality operates on a population can reveal underlying growth dynamics and size‐selective ecological processes affecting the population and thus can be used to guide conservation efforts. For...

    Gamble, Madilyn M.; Connelly, Kristin A.; Gardner, Jennifer R.; Chamberlin, Joshua W.; Warheit, Kenneth I.; Beauchamp, David A.
    Gamble, M.M., K.A. Connelly, J.R. Gardner, J.W. Chamberlin, K.I. Warheit, and D.A. Beauchamp. 2018. Size, growth, and size-selective mortality of subyearling Chinook salmon during early marine residence in Puget Sound. Trans. Am. Fish. Soc. 147(2): 370-389.

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    Year Published: 2018

    Refining aging criteria for northern sea otters in Washington State

    Measurement of skull ossification patterns is a standard method for aging various mammalian species and has been used to age Russian, Californian, and Alaskan sea otter populations. Cementum annuli counts have also been verified as an accurate aging method for the Alaskan sea otter population. In this study, cementum annuli count results and skull...

    Schuler, Krysten L.; Baker, Bridget B.; Mayer, Karl A.; Perez-Heydrich, Carolina; Holahan, Paula M.; Thomas, Nancy J.; White, C. LeAnn

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    Year Published: 2018

    Stress rotation across the Cascadia megathrust requires a weak subduction plate boundary at seismogenic depths

    The Mendocino Triple Junction region is the most seismically active part of the Cascadia Subduction Zone. The northward moving Pacific plate collides with the subducting Gorda plate causing intense internal deformation within it. Here we show that the stress field rotates rapidly with depth across the thrust interface from a strike-slip regime...

    Li, Duo; McGuire, Jeffrey J.; Liu, Yajing; Hardebeck, Jeanne L.
    Li, D., McGuire, J. J., Liu, Y., & Hardebeck, J. L. (2018). Stress rotation across the Cascadia megathrust requires a weak subduction plate boundary at seismogenic depths. Earth and Planetary Science Letters, 485, 55-64.

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    A man wearing safety gear stands on the fantail of a small boat preparing a box core for deployment.
    February 11, 2020

    GOMEX box corer

    USGS marine engineering technician Dan Powers from the USGS Pacific Coastal and Marine Science Center retrieves the GOMEX box corer from Bellingham Bay, Washington.

    A series of panels, looking down at a river delta, show how the delta changed, growing larger as more sediment flowed downriver.
    December 31, 2019

    Evolution of shoreline around Elwha River mouth

    Evolution of the shoreline around the Elwha River mouth, Washington, before, during and after dam removal, 2011–2017. Two large dams were removed from the Elwha River between 2011 and 2014 in the largest dam removal worldwide thus far, releasing more than 20 million tons of sediment downstream. These images show the effects of new sediment depositing around the river mouth

    ...
    Two men work on a boat pulling up a long cable from the water.
    December 31, 2019

    Retrieving a core sampler

    USGS scientists Dan Powers (left) and Andy Ritchie retrieving a core sample from beneath Lake Ozette aboard research vessel Hadai.

    An illustrated map shows seafloor features and is labeled with dots to show where samples were collected.
    December 31, 2019

    Lake Ozette bathymetry

    Bathymetric map of Lake Ozette, showing locations of core samples (red circles).

    Illustration helps visualize the seafloor character offshore of the continental United States showing canyons and other features
    December 31, 2019

    Astoria Canyon multibeam bathymetry

    Multibeam bathymetry shown in the spectrum from red (shallower) to blue (deeper) for depths greater than 200 m across the head of Astoria Canyon. The land and continental shelf are shown in grayscale slope shading where darker colors represent steeper slopes.  The modern Columbia River is far right. In 2019, geophysical surveys using Chirp subbottom and Sparker

    ...
    Depth of earthquakes at Mount Rainier 2010 to 2019
    December 19, 2019

    Mount Rainier: Earthquakes in the Hydrothermal System

    Earthquakes at Mount Rainier from 2010 to 2019. As shown in the graphic, fluids from the magmatic system beneath the volcano rise through existing cracks and weaknesses in the crust. Along with rainwater and ice/snow melt, these fluids combine to create a hydrothermal system within the volcano. When pressurized fluids move along faults in the shallow subsurface, they

    ...
    August 26, 2019

    “Science is amazing”: GeoGirls explore Mount St. Helens

    During Aug. 4-8, 2019, U.S. Geological Survey women scientists, university researchers and Mount St. Helens Institute staff led 25 middle-school girls from Washington and Oregon in the fifth annual “GeoGirls” outdoor volcano science program at Mount St. Helens, Washington.
     

    small white cliff with grass on top
    August 12, 2019

    Pyroclastic Flow Outcrop on the Pumice Plain at Mount St. Helens

    This photo shows an outcrop of pyroclastic flow deposits near Willow Creek on the Pumice Plain at Mount St. Helens. The dramatic lines crossing the outcrop indicate contacts between different layers of pyroclastic flow deposits. Two participants of the 2019 GeoGirls program are shown studying the outcrop, using it to understand the eruptive history of the volcano. GeoGirls

    ...
    Columbia torrent salamander
    August 5, 2019

    Columbia torrent salamander (Rhyacotriton kezeri)

    Torrent salamanders are Northwest-U.S. endemic, headwater-stream-associated amphibian species that have a dearth of basic ecological information, but are thought to be highly vulnerable to habitat changes. This taxon currently has two candidates for listing by the Endangered Species Act: the Cascade torrent salamander (Rhyacotriton cascadae) and the Columbia

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    Girls standing in a large circle around a volcano monitoring station
    August 5, 2019

    The GeoGirls Visit a Volcano Monitoring Station at Mount St. Helens

    The GeoGirls visit a volcano monitoring station on the east side of Mount St. Helens, finding out how scientists use different monitoring methods (seismic, GPS, tiltmeter) to understand more about the volcano.

    GeoGirls 2019 group photo, with Mount St. Helens in the background
    August 5, 2019

    GeoGirls 2019 Group Photo

    GeoGirls 2019 group photo, with Mount St. Helens in the background.

    Girls hike along a trail at Mount St. Helens
    August 5, 2019

    GeoGirls Hike the Pumice Plain at Mount St. Helens

    The GeoGirls hike the Pumice Plain at Mount St. Helens, examining lava outcrops and volcanic sediment.

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    USGS scientist Nancy Prouty collects deep-sea water samples as part of the EXPRESS 2019 expedition
    October 30, 2019

    Keep up to speed with the latest USGS deep-sea research cruise with this seafloor syntax.

    Deep-sea organisms
    October 16, 2019

    Keep up to speed with the latest USGS deep-sea research cruise with this seafloor syntax.

    Mount Hood, Oregon in early Summer....
    September 18, 2019

    New sensor network will help safeguard lives and property, and because of the relatively small footprint, there will be very little disturbance to the environment and wildlife in the area.

    Northern spotted owl grabbing a mouse off a branch
    September 16, 2019

    Researchers evaluated tissues from barred owls collected in Washington and Oregon to assess potential exposure of the Northern spotted owl and other old-forest wildlife in the Pacific Northwest to anticoagulant rodenticides (AR). They used ecologically similar barred owls as a surrogate species for the northern spotted owl, as the two species compete for space, habitat, and small mammal prey.

    Girls standing in a large circle around a volcano monitoring station
    September 11, 2019

    Twenty-five middle school-age GeoGirls spent five days conducting hands-on research and interacting with female scientists, educators and older students, all while learning about active volcanoes, natural hazards and modern scientific monitoring technologies below the summit of Mount St. Helens.

    rough skin newt
    September 10, 2019

    Floodplain ponds and wetlands are productive and biodiverse ecosystems. Protecting and restoring floodplain ecosystems requires understanding how organisms use these habitats and respond to altered environmental conditions.

    Group of girls look at river
    July 29, 2019

    VANCOUVER, Wash. — Twenty-five middle school girls from Washington and Oregon are participating in the fifth annual GeoGirls outdoor volcano science program at Mount St. Helens, jointly organized by the U.S. Geological Survey and the Mount St. Helens Institute.

    USGS Scientists taking sediment core at Six Gill Slough restored marsh.
    June 6, 2019

    California Water Science Center Research Hydrologist Dr. Judith Drexler and others have published an article in the journal Restoration Ecology, observing the progress of a restored salt marsh in southern Puget Sound, Washington.

    Hazy photograph taken at an angle up in the sky of a water inlet with islands, a shape with words is placed on top of the photo.
    May 29, 2019

    Pacific Coastal and Marine Science Center director Guy Gelfenbaum and NW Region Staff Scientist Bill Labiosa represented the USGS in the Puget Sound Day on the Hill in Washington, D.C. May 14 - 16, 2019.

    Checking lampara net for fish
    May 28, 2019

    Interactive Data Visualization Tool Allows Us to Explore Fish Use of Eelgrass Habitat in Puget Sound

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    Western Fisheries Research Center

    Western Fisheries Research Center

    Research at the WFRC focuses on the environmental factors responsible for the creation, maintenance, and regulation of fish populations including their interactions in aquatic communities and ecosystems. 

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    Washington Water Science Center

    Washington Water Science Center

    The Water Science Center's mission is to collect, analyze and disseminate the impartial hydrologic data and information needed to wisely manage water resources for the people of the United States and the State of Washington.

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