Unified Interior Regions

Region 9: Columbia-Pacific Northwest

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Columbia River flows by highway in Portland, OR, with Mt. Hood in background
March 12, 2015

Columbia River in Portland, OR, with Mt. Hood

The Columbia River flows by the highway on its way to the Pacific Ocean.

March 9, 2015

Climate Vulnerability Assessment for Threatened Bull Trout

This webinar was conducted on March 10, 2015 as a part of the Climate Change Science and Management Webinar Series, co-hosted by the USGS National Climate Change and Wildlife Science Center and the USFWS National Conservation Training Center. Webinar Summary: Bull trout is the most cold-adapted fish in freshwaters of the Pacific Northwest. The species is listed as

February 26, 2015

PubTalk 2/2015 — Undamming Washington's Elwha River

by Amy East USGS Research Geologist

  • Hear about river response to the largest dam removal in history.
  • Causing disturbance as a means of restoration: how well does it work?
  • Will legendary salmon runs return?
Centrifuge Bowl Containing River Suspended Sediment
February 5, 2015

Centrifuge Bowl Containing River Suspended Sediment for Analysis

A U.S. Geological Survey hydrologist holds a centrifuge bowl containing river suspended sediment for analysis of metals and organic chemicals. The sample was collected using a new in-field continuous-flow centrifugation technique to separate and collect suspended sediment from large volumes of water. The sample was collected on the Duwamish River, Washington in cooperation

A USGS streamgage
January 14, 2015

A USGS streamflow gaging station is used to collect water data

A U.S. Geological Survey streamflow gaging station collects water data on the Trask River. The Trask River gage is located near Tillamook, Ore. and has been in operation for 17 years.  

USGS streamgage in foreground with river and trees in background
January 14, 2015

USGS streamgage on the Trask River

Trask River stage, discharge, and water-quality data are collected and used together to help monitor the current health of the river. Data from the river are sent to equipment in the gage house, where it is stored then transmitted to USGS servers. 

January 7, 2015

Oso Landslide Computer Simulations

A large destructive landslide occurred near Oso, Washington on March 22, 2014. Computer simulations indicate that it could have behaved very differently (with much less mobility and consequent destructiveness) if the ground had been less porous and water-saturated. This video shows the results of two computer simulations. The first simulation shows computed landslide

December 31, 2014

Continuous Gas Monitoring Tracks Volcanic Activity at Mount St. Helens

Volcano gas geochemistry has been around for a long time. Scientists can make gas measurements using very large, very expensive Correlation Spectrometers or collect samples in the field and bring them back for analysis in the lab. But it’s possible we’re missing out on a lot of information because our monitoring capabilities don’t include continuous observation.


Elwha River flowing through former dam site during flood
December 9, 2014

Elwha River flowing through former dam site during flood

USGS Hydrologist Chris Magirl captures image of the Elwha River flooding for the first time following dam removal. This location is just downstream of the former Elwha Dam which used to stand at the area near the top of the photograph.

Pend Oreille River in winter
December 1, 2014

Pend Oreille River in winter

The Kalispel Tribe in northeastern Washington is located along the Pend Oreille River, home to culturally important, cold-water fish, such as bull trout and cutthroat trout. In an ongoing study, USGS researchers are helping to identify cold-water refuges and develop a protection and restoration framework that will inform Kalispel Tribe natural resource managers involved in

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December 14, 2005

This Information Statement provides an update about ongoing investigations of the broad area in the Three Sisters region of central Oregon that has been gradually swelling since late 1997. 

USGS science for a changing world logo
December 14, 2005

This Information Statement provides an update about ongoing investigations of the broad area in the Three Sisters region of central Oregon that has been gradually swelling since late 1997. Field surveys indicate that the swelling, or uplift, is continuing but may have slowed somewhat during the past year.

September 21, 2005

The USGS is releasing 20-minutes of video of Mount St Helens, taken by staff at the USGS Cascades Volcano Observatory (CVO). The video will be available in Vancouver at the Friday, September 23, news event or by contacting Don Becker at the EROS Data Center. Public release of the video is embargoed until Friday, September 23 at 10 a.m. PDT.

September 20, 2005

It’s been a year since Mount St Helens suddenly showed signs of volcanic unrest. Join CVO scientists for a retrospective and future analysis of the ongoing eruption.

USGS science for a changing world logo
August 31, 2005

Most species of migratory birds in the Northern Hemisphere make two long trips each year, one north for nesting and the other south for the winter. New information collected by USGS scientists shows that individuals of at least one species, the prairie falcon, make three separate long trips each year.

August 1, 2005

In its latest report on water use in the United States, the USGS looked at the nation's dependence on ground water. The report entitled Estimated Withdrawals from Principal Aquifers in the United States, 2000, provides details of ground-water withdrawals and use from principal aquifers in each state.

June 28, 2005

The U.S. Geological Survey (USGS) announces the recipients of the second year of the Mineral Resources External Research Program, a grant and/or cooperative agreement opportunity designed to support minerals research. The grant award is split among six topics that support the goals of the Mineral Resources Program and deliver products within one year.

USGS science for a changing world logo
April 29, 2005

Reston, VA – The U.S. Geological Survey (USGS) today released the first ever comprehensive and systematic review of the 169 U.S. volcanoes and established a framework for a National Volcano Early Warning System (NVEWS) which calls for a 24-hour seven-day-a-week Volcano Watch Office and enhanced instrumentation and monitoring at targeted volcanoes.

USGS science for a changing world logo
April 8, 2005

Another Great Earthquake in the Indian Ocean, but What About the Tsunami?

Steam Explosions, Earthquakes, and Volcanic Eruptions--What’s in Yellowstone’s Future?

Radio-Monitored Salmon Shed Light on Snake River for Water Managers

Itching to Know More About America’s Modern Gold Rush?

Hazards and Cooperation Spawn New Uses for Geospatial Information


USGS science for a changing world logo
December 6, 2004

USGS Director Chip Groat is available for interviews on Dec. 6-7. Please call the contact, above. Groat will present Science for Ecosystem Restoration on Mon, Dec. 6 from 2:20-2:50pm.

USGS science for a changing world logo
October 25, 2004

The U.S. Geological Survey (USGS) presented the 2004 John Wesley Powell Award to governmental, educational and organizational partners who have worked with the USGS to strengthen The National Map, to teach the importance of remote sensing data, to communicate USGS science, and to provide information to water managers about floods.

October 25, 2004

U.S. Geological Survey and NASA scientists studying Mount St. Helens are using high-tech Light Detection and Ranging (LIDAR) instrumentation to analyze changes in the surface elevation of the crater, which began deforming in late September 2004.