Unified Interior Regions

Region 9: Columbia-Pacific Northwest

Regions L2 Landing Page Tabs

Filter Total Items: 329
Date published: May 28, 2019
Status: Active

Fine sediment infiltration in Chinook spawning gravels in the Sauk River Basin, Washington

The Issue: There is concern that inherently high finer-grained (small gravel, sand, and silt) sediment loads in the Sauk River system may adversely affect egg-to-fry survival of ESA-listed Chinook salmon in the Sauk River and lower Skagit River Basin. However, there are no quantitative data for the Sauk River basin to assess if fine sediment deposition and infiltration into...

Date published: May 23, 2019
Status: Active

Cheatgrass and Medusahead

Invasive annual grasses, such as cheatgrass (Bromus tectorum) and medusahead (Taeniatherum caput-medusae), are one of the most significant stressors to rangeland ecosystems in the western U.S. Their expansion and dominance across this area are the most damaging ecosystem agents on this iconic landscape.

Date published: May 8, 2019
Status: Active

Southeast Sound Groundwater Flow Model

The Issue: Groundwater is an important resource for domestic, commercial, and industrial usage in the Puyallup River and Chambers-Clover Creek Watersheds, and groundwater discharge helps maintain late-summer and early-fall streamflow (baseflow) in many area streams. Consequently, as the population grows, and commercial and industrial activity increase, so does the demand for...

Date published: May 1, 2019
Status: Active

Salmon River Mountains Legacy Mining Studies

The objective of this study is to characterize the regional impact of legacy mining in the context of framework geology for the Salmon Mountains in central Idaho. This objective is addressed through three interrelated tasks: 1) framework geology, 2) watershed biogeochemical processes, and 3) characterization of trace metals in colloids (fine particles suspended in water).

Date published: March 26, 2019
Status: Active

Defining Native Ranges of U.S. Inland Fishes

Understanding the native versus non-native range of a species can provide useful information about dispersal, population distribution patterns, and human mediated movement across hydrologic barriers. The USGS Nonindigenous Aquatic Species (NAS) Program is working with partners to define native ranges of inland fishes in the United States to help identify which species should be included in the...

Date published: March 5, 2019
Status: Active

The Nonindigenous Aquatic Species Flood and Storm Tracker (FaST)

Storm-related flooding can lead to the potential spread of nonindigenous (or non-native) aquatic species into waterways they have not been seen in before. The USGS Nonindigenous Aquatic Species program has developed an innovative mapping tool to help natural resource managers with post-storm nonindigenous aquatic species detection and assessment efforts. 

Date published: February 26, 2019
Status: Completed

Erosion of a Sea Stack Over 100 Years

The following photographs show the demise of Jump-Off Joe, a one-hundred-foot-high sandstone formation known as a “sea stack”. In 1890, the sea stack was composed of middle Miocene concretionary sandstone of the Astoria Formation. Yaquina Head on the Horizon is composed of middle Miocene basalt flows and breccia. Note remnant of Pleistocene terrace deposit along the wave cut bench on the stack...

Date published: February 26, 2019
Status: Completed

December 2014 Pacific Coast Floods

Learn more about USGS flood activities related to the December 2014 Pacific Coast floods, which included flash floods, heavy snows, high winds, and mudslides throughout Oregon, Washington, and California.

Date published: December 13, 2018
Status: Active

WFRC Ecology Section - Projects Overview

The Ecology Section examines how environmental variability, human activities and infrastructure influence food web interactions and species performance in freshwater and marine ecosystems. We have extensive experience in quantifying aquatic food web processes as they relate to growth, survival and production of key species of interest, especially resident and anadromous salmonids.

Date published: December 6, 2018
Status: Active

Western Great Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered continuous oil and gas resources of the Western Great Basin Province 5018:

 

Filter Total Items: 188
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

Date published: December 6, 2018

Downloadable Data for Western Great Basin Oil and Gas Assessments

GIS Data for Western Great Basin Oil and Gas Assessments 

Date published: December 6, 2018

Downloadable Data for Idaho-Snake River Downwarp Oil and Gas Assessments

GIS Data for Idaho-Snake River Downwarp Oil and Gas Assessments

Date published: November 29, 2018

Downloadable Data for Wyoming Thrust Belt Oil and Gas Assessments

Downloadable Data for Wyoming Thrust Belt Oil and Gas Assessments 

Date published: November 29, 2018

Downloadable Data for Eastern Oregon-Washington Oil and Gas Assessments

Downloadable Data for Eastern Oregon-Washington Oil and Gas Assessments

Date published: November 29, 2018

Downloadable Data for Western Oregon-Washington Oil and Gas Assessments

Downloadable Data for Western Oregon-Washington Oil and Gas Assessments 

Date published: November 13, 2018

Chinook Salmon Use of Eelgrass Habitats Skagit River Delta Washington

The degree to which eelgrass on river deltas provides critical habitat for estuarine fishes, especially out‐migrating juvenile salmon, is an important scientific and management issue that bears on efforts to conserve and restore both eelgrass and fish.

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June 11, 2019

Tribal Resources for Climate Change Vulnerability Assessments

Tribes have been actively engaged in efforts to anticipate and respond to climate impacts on their natural and cultural resources. And yet, some tribes have faced difficulties initiating and completing the critical first step of the climate adaptation planning process: an assessment of locally-specific climate risks that accounts for the unique priorities, values, and

USGS Scientists taking sediment core at Six Gill Slough restored marsh.
May 30, 2019

USGS Scientists taking sediment core at Six Gill Slough restored marsh

USGS Scientists taking sediment core USGS Scientists taking sediment core at Six Gill Slough restored marsh.

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.

Color photo of USGS researchers in Idaho
February 8, 2019

USGS EROS Researchers in Idaho

USGS EROS contractor Minsu Kim, left, and USGS Scientist Jeffrey Danielson stand with a GPS device in northern Idaho, where they were part of a research project to conduct topobathymetric research along the Kootenai River of northern Idaho.

root nodules
January 2, 2019

Alder root nodules

Root nodules are a symbiotic relationship between a plant and nitrogen-fixing bacteria. A symbiotic relationship is one where both organisms benefit. Nitrogen-fixing bacteria change inorganic nitrogen from the air into ammonia, a form of nitrogen most organisms can use. They also use a process called rock dissolution to release other nutrients, such as calcium and

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bee approaching a flower
December 31, 2018

Male leafcutting bee (Megachile) approaching an Origanum

The alfalfa leafcutting bee (Megachile rotundata) is an introduced species common to Southwest Idaho. They originate from the old world, most likely from northeastern Africa or the Middle East. These bees are successful pollinators of various crops and have been imported to North America for use in agriculture and beekeeping.

USGS hydrographer measuring streamflow on Warm Springs Creek, Idaho
December 19, 2018

USGS hydrographer measuring streamflow on Warm Springs Creek, Idaho

Justin McKoon, hydrologic technicians with the USGS Idaho Water Science Center, measures treamflow at USGS streamgage station 13124265, Warm Springs Creek below diversion near Mackay, Idaho.

November 2, 2018

Image of the Week - Elwha River Dam Removal

In September 2011, the largest dam removal project in U.S. history began. 

Two dams built on the Elwha River in the early 1900s created two reservoirs in northwestern Washington. They also greatly reduced the amount of sediment flowing to the river’s delta and blocked salmon migration upstream into Olympic National Park.

Each week, the Earth Resources

Juga sp. snails
October 17, 2018

Juga sp. snails

Juga sp. snails, the molluscan intermediate host for Nanophyetus salmincola, populate the bottom of a stream bed in a south Puget Sound watershed.

Landscape photo of mountains in distance with low clouds filling valley in mid-ground and pine tress on slope in foreground
October 10, 2018

Sunrise at Mount St. Helens

The sun rises at Mount St. Helens (pictured in the distance), with low-level clouds covering Coldwater Lake. The view is from the Coldwater Science and Learning Center, the site of the 2018 GeoGirls field camp program.

Map of study area
September 27, 2018

Map of study area that includes the states of ID, MT, OR, WA

Map of the study area that includes the states of Idaho, Montana, Oregon, and Washington. The Columbia and Snake rivers are the two largest rivers in the Columbia River Basin which is shown as a shaded area on the map.

September 25, 2018

First mission: USGS UAS monitors gas emissions at Mount St. Helens

On September 25, 2018, a team of three scientists based at the USGS–Cascades Volcano Observatory conducted the first-ever USGS-led Unmanned Aircraft Systems (UAS) campaign at Mount St. Helens. The UAS survey was conducted with the permission and coordination of the U.S. Forest Service Mount St. Helens National Volcanic Monument.

The team used a multi-rotor UAS (“

Filter Total Items: 421
USGS science for a changing world
August 14, 2017

The U.S. Geological Survey awarded approximately $4.9 million this week to six universities and a university-governed non-profit, to support transitioning the west coast “ShakeAlert” earthquake early warning system into a production system.

snow-capped volcano, Mount Hood on the horizon, with city of Portland, Oregon in foreground
August 8, 2017

Join volcano scientists from around the world during scientific meeting and associated public event in Portland.

Girls points to a location on a map laying on the ground.
July 27, 2017

MEDIA ADVISORY

Twenty-five middle-school girls from 11 cities in Washington and Oregon are participating in the third annual “GeoGirls” outdoor volcano science program at Mount St. Helens, jointly organized by the U.S. Geological Survey and the Mount St. Helens Institute.

A mother grizzly bear and her cub in the Greater Yellowstone Ecosystem.
July 5, 2017

From the journals of Lewis & Clark, April 13, 1805 (in the vicinity of Pouch Point Recreation Area - 16 miles south of New Town, North Dakota):

Flooding in the Western Swinomish Reservation
June 12, 2017

For the Swinomish people of northwestern Washington, water is life. But this symbiotic relationship between man and nature has been disrupted, and increasingly threatened, by sea-level rise and changes in Northwestern storm and rainfall patterns.

Image shows remnants of an abandoned mine in a hilly, forested area
June 9, 2017

At USGS, although the rocks we study are millions of years old, our scientific methods are cutting edge! Here's just one example of how we use creative problem-solving to help crystalize a solution to a complex issue.

Image: Low-Flying Airplane Maps New Madrid Zone
June 5, 2017

Editor: In the public interest and in accordance with FAA regulations, the USGS is announcing this low-level airborne project. Your assistance in informing the local communities is appreciated.

Image shows several insets against the backdrop of Mount St. Helens erupting
May 18, 2017

Today, in 1980, Mount St. Helens unleashed the most devastating eruption in U.S. history. Two years later, USGS founded the Cascades Volcano Observatory to monitor Mount St. Helens and all the Cascades Volcanoes.

Large snow-covered, cone shaped mountain in background, looming over urban area in foreground
May 1, 2017

May is Volcano Preparedness Month in Washington, providing residents an opportunity to become more familiar with volcano hazards in their communities and learn about steps they can take to reduce potential impacts.

Earthquake Early Warning: Vital for City Transit
April 6, 2017

The U.S. Geological Survey along with university, state and private-sector partners will highlight the rollout of Version 1.2 of the USGS ShakeAlert earthquake early warning system on April 10, 2017.

Image shows a scan of a grain of pyrite rimmed with stibnite, with varying levels of arsenic shown in a color gradient. Image pr
April 6, 2017

Today’s high-end electronics increasingly rely on mineral commodities...and research into those mineral commodities is increasingly using high-end electronics too!

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