Unified Interior Regions

Region 9: Columbia-Pacific Northwest

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Large snow-covered, cone shaped mountain in background, looming over urban area in foreground
January 18, 2014

Mount Rainier looms over the Puyallup Valley, Washington

Mount Rainier volcano looms over Puyallup Valley, near Orting, Washington.

Surveying stream channels at Mount St. Helens...
January 17, 2014

Surveying stream channels at Mount St. Helens

Scientists conduct a stream channel cross-section survey of the Toutle River on the north side of Mount St. Helens (view to the southwest).

Suspended sediment sampling series
December 31, 2013

Suspended sediment sampling series

Series of daily sample bottles containing integrated water samples from the Elwha River, October 17, 2012 to November 9, 2012. Graphical overlay is the measured suspended sediment concentration in each sample bottle, showing the variability in sediment concentration during the time period shown.

Suspended sediment sampling bottles from Elwha River sampling
December 31, 2013

Suspended sediment sampling bottles from Elwha River sampling

Series of daily sample bottles containing integrated water samples from the Elwha River, October 17, 2012 to November 9, 2012.

Spectrogram from Central Pumice Cone Seismic Station, Newberry Volc...
December 5, 2013

Lake-Ice Quakes from Newberry Volcano

The popping and cracking of ice in lakes within the Newberry Volcano caldera is picked up by local seismic stations, such as Central Pumice Cone. The lake-ice quakes do not resemble standard volcanic low-frequency or high-frequency events and are sporadically observed in the winter at other ice-covered lakes in Yellowstone, Long Valley, and elsewhere.

Antennas deployed in the Wind River to monitor movements of fish.
November 4, 2013

Antennas deployed in the Wind River to monitor movements of fish.

Antennas deployed in the Wind River to monitor movements of fish that have been tagged with Passive Integrated Transponder (PIT) tags.  The need to track fish movements in large streams over extensive areas has extended this current technology to new levels.

Monitoring river discharge near Mount St. Helens, Washington....
October 30, 2013

Monitoring river discharge near Mount St. Helens, WA.

Crews test two methods of measuring discharge of the Muddy River near Mount St. Helens, Washington. The computer and tethered orange float create a vertical discharge profile; the hand-held flow tracker confirms the data. Data collection is becoming more electronic-oriented with periodic confirmation of results by physical observations.

Maintenance at Acoustic Flow Monitor near Mount St. Helens, Washing...
October 18, 2013

Maintenance at Acoustic Flow Monitor near Mount St. Helens, WA

Repairs are made to an Acoustic Flow Monitor (AFM) located at the confluence of the North Fork Toutle River, Maratta, Castle and Coldwater Creeks, where the most recent lahar occurred in November, 2006. AFMs are installed to "hear" when lahars [muddy debris flows] move down channel so affected communities can be warned of the hazard.

Mouth of the Elwha River during dam removal
September 28, 2013

Mouth of the Elwha River during dam removal

Aerial photograph of the mouth of the Elwha River where it meets the Strait of Juan de Fuca during the removal of the Elwha and Glines Canyon dams, Washington State, USA. Aerial assistance by LightHawk and plane piloted by Dr. Hunter Handsfield.

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USGS
January 7, 2000

Seattle will keep cool, clean drinking water flowing from the Cedar River Watershed while keeping streams healthy for threatened salmon, with help from a monitoring method developed by the U.S. Geological Survey, Department of the Interior.

USGS
October 25, 1999

A method of calculating a power-consumption coefficient (pcc) for irrigation pump sites along the Snake River can save personnel, vehicle, and equipment costs and, thus, dollars, according to a new report from the U.S. Geological Survey, U.S. Department of the Interior

USGS
October 4, 1999

Nitrate contamination of ground water from land use activities, especially agricultural activities, is common in many parts of the lower Nooksack River Basin. Fifty-five of the 368 wells sampled for nitrate showed concentrations above the U.S. Environmental Protection Agency and Health Canada drinking water standards, according to a recently published report by the U.S. Geological Survey (USGS).

USGS
August 3, 1999

The earthquakes and volcanic activity that created and continue to define Mount Rainier are the subjects of four lectures to be presented by U.S. Geological Survey scientists in or near Mount Rainier National Park in August. The schedule is as follows:

USGS
July 15, 1999

Water released from reservoirs into the North Branch of the Potomac River on Sunday will arrive at the water-supply intakes at Washington sometime on Thursday or Friday, according to the National Weather Service.

USGS
May 28, 1999

The scenery is spectacular, but don’t go for the pure mountain air. According to a recently published study, air in Washington’s Mount Rainier National Park contains higher concentrations of ozone, a major component of air pollution, than nearby urban areas.

USGS
May 1, 1999

The magnitude of earthquakes in the Pacific Northwest’s prehistoric past, the results of recent earthquake "soundings," and the probabilities for future earthquakes in the Seattle area will be the focus of several presentations by U.S. Geological Survey (USGS) scientists at the annual meeting of the Seismological Society of America (SSA), in Seattle, May 3-5.

USGS
May 1, 1999

An ancient river valley a mile wide and 250 feet deep, as well as breaks in geologic strata beneath two suspected fault zones have been revealed beneath Portland, Ore., by a team of scientists from the U.S. Geological Survey, the University of Washington and Portland State University.

USGS
April 30, 1999

Large earthquakes that have happened in the past and equally large tremors that might occur in the future will be the focus of a free public forum, Monday, May 3, from 7:30 to 9:30 p.m., in the Olympic Room of the Seattle Center. The forum is sponsored by the Seismological Society of America, which will be holding its annual meeting at the Seattle Center, May 3-5.

USGS
October 25, 1998

Observers of last winter’s El Nino storms along the Pacific Coast who might have compared the intense rainfall to a monsoon were not far off the mark.

USGS
April 14, 1998

Water quality in the Central Columbia Plateau of eastern Washington and western Idaho has been adversely affected by agriculture, especially in irrigated areas, according to the results of a five-year investigation by the U.S. Geological Survey (USGS). 

USGS
April 10, 1998

Properly assessing the impacts of powerful storms associated with El Nino which have brought unprecedented erosion to the United States’ west coast is an enormous task. NASA , the U. S. Geological Survey (USGS) and the National Oceanic and Atmospheric Administration (NOAA) are combining efforts to provide public officials with the tools they need to accurately assess coastal erosion.