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Our scientists in the Northwest Region conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens of the Northwest states of Idaho, Montana, Oregon, Washington, and Wyoming.

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Re-vegetation in the river valley at the Elwha River restoration site.
March 31, 2015

Re-vegetation at the Elwha River restoration site.

Re-vegetation in the river valley at the Elwha River restoration site. Image available at Olympic National Park flickr site.

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

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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. 

Thrush feeding babies.
December 31, 2014

Thrush feeding babies.

Thrush feeding babies.

Sampling for aquatic invasive species in the Greater Yellowstone Area.
December 31, 2014

Sampling for aquatic invasive species in the Greater Yellowstone Area.

Sampling for aquatic invasive species in the Greater Yellowstone Area.

USGS scientist Adam Sepulveda sits with a sample of invasive northern pike in south central Alaska.
December 31, 2014

Sample of invasive northern pike in south central Alaska

USGS scientist Adam Sepulveda sits with a sample of invasive northern pike in south central Alaska.

An invasive American bullfrog with tracking device.
December 31, 2014

An invasive American bullfrog with tracking device.

An invasive American bullfrog with tracking device.  

Seining a heavily bullfrog populated side channel at Two Moon County Park in Billings, MT.
December 31, 2014

Capturing invasive American bullfrog tadpoles in the Yellowstone River floodplain.

Seining a heavily bullfrog populated side channel at Two Moon County Park in Billings, MT.

Capturing juvenile bull trout by electroshocking Logging Creek and then transporting them to another lake upstream.
December 31, 2014

Capturing juvenile bull trout by electroshocking in Logging Creek.

Capturing juvenile bull trout by electroshocking Logging Creek and then transporting them in a backpack up the trail to Grace Lake.

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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Our scientists in the Northwest Region conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens of the Northwest states of Idaho, Montana, Oregon, Washington, and Wyoming.