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. 

Go to Center

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.

Go to Center

States L2 Landing Page Tabs

Filter Total Items: 270
Date published: July 18, 2018
Status: Active

Erythrocytic Necrosis Virus (ENV) - MMFS

Fish Diseases

Erythrocytic Necrosis Virus (ENV)

Date published: July 18, 2018
Status: Active

Diseases - Marrowstone Marine Field Station

Fish Diseases

Disease Ecology Research at the Marrowstone Marine Field Station

Date published: July 17, 2018
Status: Active

Steelhead Trout (Oncorhynchus mykiss) - MMFS

Species Studied

Steelhead Trout (Oncorhynchus mykiss)

Date published: July 17, 2018
Status: Active

Pacific Herring (Clupea pallasii) - MMFS

Species Studied

Pacific Herring (Clupea pallasii)

Date published: July 17, 2018
Status: Active

Pacific Halibut (Hippoglossus stenolepis) - MMFS

Species Studied

Pacific Halibut (Hippoglossus stenolepis)

Date published: July 17, 2018
Status: Active

Species Studied - Marrowstone Marine Field Station

The Disease Ecology Research Program at the Marrowstone Marine Field Station addresses fundamental disease processes that impact wild marine and anadromous fishes.  The program is not designed around particular host or pathogen species; rather we investigate diseases processes that involve numerous species of marine hosts and pathogens.  Please follow the links for more information about some...

Date published: July 17, 2018
Status: Active

Research - Marrowstone Marine Field Station

Investigations cover both basic and applied research aimed at providing scientific information relevant to the needs of federal, tribal, state, and local natural resource managers.

Date published: July 17, 2018
Status: Active

About Us - Marrowstone Marine Field Station

Basic and applied research at the Marrowstone Marine Field Station is directed towards understanding ecological processes that impact marine ecosystem health. 

Date published: July 13, 2018
Status: Active

Directions - Headquarters Seattle Laboratory

Directions from Seattle-Tacoma International Airport

Date published: July 13, 2018
Status: Active

Staff Directory - Headquarters Seattle Laboratory

Staff at the Seattle Laboratory, Seattle, WA

Date published: July 13, 2018
Status: Active

Partnerships - Headquarters Seattle Laboratory

For more than five decades the WFRC has worked with partners to provide research findings to managers of aquatic resources.

Date published: July 13, 2018
Status: Active

Puget Sound Fall Chinook Estuarine Utilization - HSL

Tribal Relations

Puget Sound Fall Chinook Estuarine Utilization

Contacts: Kimberly Larsen
Filter Total Items: 180
Date published: January 1, 2017

Evaluating Coho Salmon in Streams Across an Urbanization Gradient; Part 1, Growth Potential Based on Environmental Factors and Bioenergetics

Physical and chemical changes affect the biota within urban streams at varying scales ranging from individual organisms to populations and communities creating complex interactions that present challenges for characterizing and monitoring the impact on species utilizing these freshwater habitats. Salmonids, specifically cutthroat trout (Oncorhynchus clarkii) and coho salmon (Oncorhynchus

Date published: January 1, 2017

Nearshore bathymetry data from the Elwha River delta, Washington, May 2011, collected from personal watercraft

This part of the data release presents bathymetry data from the Elwha River delta collected in May 2011 using two personal watercraft (PWCs). The PWCs were equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers.

Date published: January 1, 2017

Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington

This data release contains bathymetry and topography data from surveys performed on the Elwha River delta between 2010 and 2017. Sediment grain-size data are available for selected surveys performed after May 2012. This data release will be updated as additional bathymetry, topography, and surface-sediment grain-size data from future surveys become available.

Date published: January 1, 2017

Digital elevation models (DEMs) of the Elwha River delta, Washington, May 2011

This part of the data release presents a digital elevation model (DEM) derived from bathymetry and topography data of the Elwha River delta collected in May 2011. Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Can

Date published: January 1, 2017

Nearshore bathymetry data from the Elwha River delta, Washington, September 2010

This part of the data release presents bathymetry data from the Elwha River delta collected in September 2010 using a personal watercraft (PWC) and a small boat. Both survey vessels were equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers.

Date published: January 1, 2017

Lagrangian drifter data from the mouth of the Columbia River, Oregon and Washington, 2013

Lagrangian surface currents were measured using drifters equipped with global navigation satellite system (GNSS) receivers. A total of 8 drifter deployments were performed between May 25 and June 8, 2013. For each deployment, drifters were released within the MCR and their positions were recorded until the drifters were recovered. The average duration of the drifter deployments varied bet

Date published: January 1, 2017

Nearshore bathymetry data from the Elwha River delta, Washington, August 2012

This part of the data release presents bathymetry data from the Elwha River delta collected in August 2012 using a personal watercraft (PWC) and the R/V Frontier. Both survey vessels were equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers.

Date published: January 1, 2017

Geomorphic habitat units derived from 2014 aerial imagery and elevation data for the Elwha River estuary, Washington

Estuary geomorphic units delineated at a scale of 1:1500 using a combination of (a) 28 August 2014 0.15 meter resolution NPS Elwha PlaneCam aerial imagery; and (b) elevation-colored and hillshaded digital elevation models from USGS backpack/jetski topobathy surveys (5-8 September 2014) for areas < MHHW and aerial lidar surveys (7 November 2014) supplemented with NPS Elwha

Date published: January 1, 2017

Nearshore bathymetry data from the Elwha River delta, Washington, April 2014, collected from personal watercraft

This part of the data release presents bathymetry data from the Elwha River delta collected in April 2014 using two personal watercraft (PWCs). The PWCs were equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers.

Date published: January 1, 2017

Topography data from the Elwha River delta, Washington, August 2012

This part of the data release presents topography data from the Elwha River delta collected in August 2012. Topography data were collected on foot with global navigation satellite system (GNSS) receivers mounted on backpacks.

Date published: January 1, 2017

Hydrodynamic modeling of the mouth of the Columbia River, Oregon and Washington, 2013

A process-based numerical model of the mouth of the Columbia River (MCR) and estuary, Oregon and Washington, was applied to simulate hydrodynamic conditions for the time period of the Office of Naval Research-funded River and Inlets Dynamics (RIVET II) field experiment conducted between May 9 and June 15, 2013. The model application was constructed using Delft3D, an open-source s

Date published: January 1, 2017

Geomorphic habitat units derived from 2013 aerial imagery and elevation data for the Elwha River estuary, Washington

Estuary geomorphic units delineated at a scale of 1:1500 using a combination of (a) 26 August 2013 0.15 meter resolution NPS Elwha PlaneCam aerial imagery; and (b) elevation-colored and hillshaded digital elevation models from USGS backpack/jetski topobathy surveys (16 September 2013) for areas < MHHW and aerial lidar surveys (17 October 2012) supplemented with NPS Elwha P

Filter Total Items: 733
Publication Thumbnail
Year Published: 2015

Large-scale dam removal on the Elwha River, Washington, USA: source-to-sink sediment budget and synthesis

Understanding landscape responses to sediment supply changes constitutes a fundamental part of many problems in geomorphology, but opportunities to study such processes at field scales are rare. The phased removal of two large dams on the Elwha River, Washington, exposed 21 ± 3 million m3, or ~ 30 million ...

Warrick, Jonathan A.; Bountry, Jennifer A.; East, Amy E.; Magirl, Christopher S.; Randle, Timothy J.; Gelfenbaum, Guy R.; Ritchie, Andrew C.; Pess, George R.; Leung, Vivian; Duda, Jeff J.
Warrick, J.A., et al., 2015, Large-scale dam removal on the Elwha River, Washington, USA: Source-to-sink sediment budget and synthesis, Geomorphology, http://dx.doi.org/10.1016/j.geomorph.2015.01.010

Publication Thumbnail
Year Published: 2015

Biotic and abiotic influences on abundance and distribution of nonnative Chinook salmon and native ESA-listed steelhead in the Wind River, Washington

Biotic and abiotic factors influence fish populations and distributions. Concerns have been raised about the influence of hatchery fish on wild populations. Carson National Fish Hatchery produces spring Chinook salmon Oncorhynchus tshawytscha in the Wind River, Washington, and some spawn in the river. Managers were concerned that Chinook salmon...

Jezorek, Ian G.; Connolly, Patrick J.
Jezorek, I.G., and P.J. Connolly. 2015. Biotic and abiotic influences on abundance and distribution of nonnative Chinook salmon and native ESA-listed steelhead in the Wind River, Washington. Northwest Sci. 89(1): 58-74.

Publication Thumbnail
Year Published: 2015

Kinematics of shallow backthrusts in the Seattle fault zone, Washington State

Near-surface thrust fault splays and antithetic backthrusts at the tips of major thrust fault systems can distribute slip across multiple shallow fault strands, complicating earthquake hazard analyses based on studies of surface faulting. The shallow expression of the fault strands forming the Seattle fault zone of Washington State shows the...

Pratt, Thomas L.; Troost, K.G.; Odum, Jackson K.; Stephenson, William J.
Pratt, T.L., Troost, K.G., Stephenson, W., and Odum, J., 2015, Kinematics of shallow backthrusts in the Seattle fault zone, Washington State, Geosphere, v. 11, no. 6, p. 1948-1974. doi:10.1130/GES01179.1

Publication Thumbnail
Year Published: 2015

Thin‐ or thick‐skinned faulting in the Yakima fold and thrust belt (WA)? Constraints from kinematic modeling of the saddle mountains anticline

The Yakima fold and thrust belt (YFTB) deforms the Columbia River Basalt Group flows of Washington State. The YFTB fault geometries and slip rates are crucial parameters for seismic‐hazard assessments of nearby dams and nuclear facilities, yet there are competing models for the subsurface fault geometry involving shallowly rooted versus deeply...

Casale, Gabriele; Pratt, Thomas L.
Casale, G. and Pratt, T.L., 2015, Thin-skin or thick-skin faulting in the Yakima Fold and Thrust Belt of central Washington State?: Constraints from kinematic modeling of the Saddle Mountains Anticline, Bulletin of the Seismological Society of America, v. 105, p.1042-1048. doi:10.1785/0120140207

Publication Thumbnail
Year Published: 2014

Contaminants of legacy and emerging concern in largescale suckers (Catostomus macrocheilus) and the foodweb in the lower Columbia River, Oregon and Washington, USA

We investigated occurrence, transport pathways, and effects of polybrominated diphenyl ether (PBDE) flame retardants and other endocrine disrupting chemicals (EDCs) in aquatic media and the foodweb in the lower Columbia River. In 2009 and 2010, foodweb sampling at three sites along a gradient of contaminant exposure near Skamania (Washington),...

Nilsen, Elena B.; Zaugg, Steven D.; Alvarez, David A.; Morace, Jennifer L.; Waite, Ian R.; Counihan, Timothy D.; Hardiman, Jill M.; Torres, Leticia; Patino, Reynaldo; Mesa, Matthew G.; Grove, Robert

Publication Thumbnail
Year Published: 2014

A legacy of divergent fishery management regimes and the resilience of rainbow and cutthroat trout populations in Lake Crescent, Olympic National Park, Washington

As a means to increase visitation, early fisheries management in the National Park Service (NPS) promoted sport harvest and hatchery supplementation. Today, NPS management objectives focus on the preservation of native fish. We summarized management regimes of Olympic National Park's Lake Crescent, which included decades of liberal sport harvest...

Brenkman, Samuel J.; Duda, Jeffrey J.; Kennedy, Philip R.; Baker, Bruce M.
Brenkman, S., J.J. Duda, P.R. Kennedy, and B.M. Baker. 2015. A legacy of divergent fishery management regimes and the resilience of rainbow and cutthroat trout populations in Lake Crescent, Olympic National Park, Washington. Northwest Sci. 88(4): 280-304.

Publication Thumbnail
Year Published: 2014

Holocene earthquakes and right-lateral slip on the left-lateral Darrington-Devils Mountain fault zone, northern Puget Sound, Washington

Sources of seismic hazard in the Puget Sound region of northwestern Washington include deep earthquakes associated with the Cascadia subduction zone, and shallow earthquakes associated with some of the numerous crustal (upper-plate) faults that crisscross the region. Our paleoseismic investigations on one of the more prominent crustal faults, the...

Personius, Stephen F.; Briggs, Richard W.; Nelson, Alan R.; Schermer, Elizabeth R; Maharrey, J. Zebulon; Sherrod, Brian; Spaulding, Sarah A.; Bradley, Lee-Ann

Publication Thumbnail
Year Published: 2014

Methow River Studies, Washington: abundance estimates from Beaver Creek and the Chewuch River screw trap, methodology testing in the Whitefish Island side channel, and survival and detection estimates from hatchery fish releases, 2013

Salmon and steelhead populations have been severely depleted in the Columbia River from factors such as the presence of tributary dams, unscreened irrigation diversions, and habitat degradation from logging, mining, grazing, and others (Raymond, 1988). The U.S. Geological Survey (USGS) has been funded by the Bureau of Reclamation (Reclamation) to...

Martens, Kyle D.; Fish, Teresa M.; Watson, Grace A.; Connolly, Patrick J.
Methow River Studies, Washington: abundance estimates from Beaver Creek and the Chewuch River screw trap, methodology testing in the Whitefish Island side channel, and survival and detection estimates from hatchery fish releases, 2013; 2014; OFR; 2014-1154; Martens, Kyle D.; Fish, Teresa M.; Watson, Grace A.; Connolly, Patrick J.

Publication Thumbnail
Year Published: 2014

Evaluation of the behavior and movement of adult summer steelhead in the lower Cowlitz River, Washington, following collection and release, 2013-2014

Summer steelhead (Oncorhynchus mykiss) produced by a hatchery on the lower Cowlitz River, Washington, support a popular sport fishery during June–September each year. Many of these fish return to the Cowlitz Salmon Hatchery and are held until they are spawned in December. In the past, fishery managers have released some of the steelhead that...

Kock, Tobias J.; Liedtke, Theresa L.; Ekstrom, Brian K.; Gleizes, Chris; Dammers, Wolf
Evaluation of the behavior and movement of adult summer steelhead in the lower Cowlitz River, Washington, following collection and release, 2013-2014; 2014; OFR; 2014-1122; Kock, Tobias J.; Liedtke, Theresa L.; Ekstrom, Brian K.; Gleizes, Chris; Dammers, Wolf

Publication Thumbnail
Year Published: 2014

Assessing climate-change risks to cultural and natural resources in the Yakima River Basin, Washington, USA

We provide an overview of an interdisciplinary special issue that examines the influence of climate change on people and fish in the Yakima River Basin, USA. Jenni et al. (2013) addresses stakeholder-relevant climate change issues, such as water availability and uncertainty, with decision analysis tools. Montag et al. (2014) explores Yakama Tribal...

Hatten, James R.; Waste, Stephen M.; Maule, Alec G.
Assessing climate-change risks to cultural and natural resources in the Yakima River Basin, Washington, USA; 2014; Article; Journal; Climatic Change; Hatten, James R.; Waste, Stephen M.; Maule, Alec G.

Publication Thumbnail
Year Published: 2014

Identifying stakeholder-relevant climate change impacts: a case study in the Yakima River Basin, Washington, USA

Designing climate-related research so that study results will be useful to natural resource managers is a unique challenge. While decision makers increasingly recognize the need to consider climate change in their resource management plans, and climate scientists recognize the importance of providing locally-relevant climate data and projections,...

Jenni, K.; Graves, D.; Hardiman, Jill M.; Hatten, James R.; Mastin, Mark C.; Mesa, Matthew G.; Montag, J.; Nieman, Timothy; Voss, Frank D.; Maule, Alec G.
Jenni, K. D. Graves, J. Hardiman, J. Hatten, M. Mastin, M. Mesa, J. Montag, T. Nieman, F. Voss, and A. Maule. 2014. Identifying stakeholder-relevant climate change impacts: A case study in the Yakima River Basin, Washington, USA. Climatic Change, 124 (1-2): 371-384

Publication Thumbnail
Year Published: 2014

Wind River subbasin restoration: U.S. Geological Survey annual report November 2012 through December 2013

Executive Summary The Wind River subbasin in southwest Washington State provides habitat for a population of wild Lower Columbia River steelhead Oncorhynchus mykiss. There have been no hatchery steelhead planted in the Wind River subbasin since 1994, and hatchery adults are estimated to be less than one percent of adults in any year (pers comm....

Jezorek, Ian G.; Connolly, Patrick J.

Filter Total Items: 876
August 14, 2017

GP2 East Transect – 2017

Permanent Control Site: GP2 East Transect; Depth: 13.2 Meters (43.2 Feet); Distance from river mouth: 18.8 Kilometers (11.7 Miles) east; Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.12781102,-123.31645664; Site Description: This site was established as the eastern control. Substrate is mainly a gravel/sand mixture. A few large boulders are located off

August 14, 2017

GP2 West Transect – 2017

Permanent Control Site: GP2 West Transect; Depth: 12.7 Meters (41.6 Feet); Distance from river mouth: 18.8 Kilometers (11.6 Miles) east; Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.12781102,-123.31712832; Site Description: This site was established as the eastern control. Substrate is mainly a gravel/sand/cobble mixture surrounding boulders. This year red

August 3, 2017

A2 East Transect – 2017

Permanent Site: A2 East Transect; Depth: 12.9 Meters (42.3 Feet); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.14130295, -123.58766124; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud. Five species of seaweeds are present though not abundant. The two most

August 3, 2017

A2 West Transect – 2017

Permanent Site: A2 West Transect; Depth: 12.8 Meters (42.0 Feet); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.14130295, -123.5883331; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud with scattered boulders. Seven species of seaweeds are present though not

August 3, 2017

C1 East Transect – 2017

Permanent Site: C1 East Transect; Depth: 8.5 Meters (28.0 Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.14525225,-123.57294101; Site Description: Substrate is entirely sand. Current was high and contained lots of drift seaweed and eelgrass (0:05 seconds). In 2016 all seaweeds were absent but this

August 3, 2017

C1 West Transect – 2017

Permanent Site: C1 West Transect; Depth: 9.3 Meters (30.4 Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.14525225,-123.57361291; Site Description: Substrate is entirely sand. Current was high and contained lots of drift seaweed and eelgrass (0:04, 0:38 seconds). Though seaweeds were absent in 2016

August 2, 2017

A1 East Transect – 2017

Permanent Site: A1 East Transect; Depth: 7.7 Meters (25.4 Feet); Distance from river mouth: 1.8 Kilometers (1.1 Miles) West; Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.13870775, -123.5855312; Site Description: Transect is in eastern part of Freshwater Bay. Sediment is primarily sand/sandy mud. Previous small boulders appear to still be buried. The sand on

August 2, 2017

A1 West Transect – 2017

Permanent Site: A1 West Transect; Depth: 8.7 Meters (28.7 Feet); Distance from river mouth: 1.9 Kilometers (1.2 Miles) West; Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.13870775, -123.586203; Site Description: Transect is in eastern part of Freshwater Bay. Sediment is primarily sand/sandy mud with patches of boulders. The sandy areas on the entire transect

Group of girls look at river
August 2, 2017

GeoGirls_Sediment1

GeoGirls collect water samples and flow measurements to model the transport of volcanic sediments.

August 2, 2017

H2 East Transect – 2017

Permanent Site: H2 East Transect; Depth: 7.6 Meters (24.8 Feet); Distance from river mouth: 2.6 Kilometers (1.6 Miles) east; Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.15008216,-123.53210661; Site Description: This site is medium to shallow depth. Substrate is mainly gravel with some sand, cobble and an occasional boulder and has not changed since dam

August 2, 2017

H2 West Transect – 2017

Permanent Site: H2 West Transect; Depth: 7.3 Meters (23.8 Feet); Distance from river mouth: 2.6 Kilometers (1.6 Miles) east; Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.15008216,-123.53277857; Site Description: This site is medium to shallow depth. Substrate is mainly gravel with some sand, cobble and an occasional boulder and has not changed since dam

August 1, 2017

K1 East Transect – 2017

Permanent Site: K1 East Transect; Depth: 6.2 Meters (20.4 Feet); Distance from river mouth: 4.5 Kilometers (2.8 Miles) east; Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.13592923,-123.5101581; Site Description: This is a shallow site. Sediment is a gravel/sand mixture. Both red (1:29 seconds) and brown seaweed was abundant but this year browns were

Filter Total Items: 378
Issue4.10October2016Thumb
November 28, 2016

Transporting Fish around Impassable Dams:  An Opportunity and Challenge for Reintroductions

USGS
November 9, 2016

On November 14, 2016, the news media are invited to visit CVO and interview VDAP scientists about their work assisting foreign counterparts—responding to volcano eruptions and promoting volcano hazard awareness and preparedness.

excerpt from Columbia Gorge landslide map
November 4, 2016

New mapping in the western portion of the Columbia Gorge in Skamania County, Washington, shows previously unrecognized landslides beneath dense forest cover.

Issue4.9September2016Thumb
October 8, 2016

Understanding Disease Outbreaks in Populations of Wild Marine Fishes

USGS scientists receiving Riverprize recognition.
September 13, 2016

NEW DELHI, INDIA – The collaborative work of the U.S. Department of the Interior and the Lower Elwha Klallam Tribe to restore the Elwha River of Washington, USA was recognized as a world-renowned restoration project during the awarding of the 2016 Thiess International Riverprize.

Issue4.7July2016Thumb
August 15, 2016

Developing Water Temperature Models to Help Understand Fish Population Dynamics and Management Actions

Female scientist and young girls looking at scientific equipment
August 4, 2016

MEDIA ADVISORY

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

Issue4.6June2016Thumb
July 8, 2016

New USGS and NOAA Collaboration in Alaska Will Help Gain Insight into Juvenile Chinook Salmon Distributions and Migrations

Issue4.5May2016Thumb
June 6, 2016

WFRC Welcomes Dr. Dave Beauchamp as New Ecology Section Chief

Filter Total Items: 160

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. 

Go to Center

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.

Go to Center