Idaho Water Science Center

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Image: Water-Quality Study in Historical Idaho Mining District
April 23, 2014

Water-Quality Study in Historical Idaho Mining District

USGS Hydrologic Technician Alvin Sablan prepares to check USGS streamgage 13310850 on Meadow Creek in the historical Stibnite Mining District of central Idaho. Data from the streamgage were used in a USGS water-quality study in the area.

Image: Hydrologist Measuring Streamflow
April 10, 2014

Hydrologist Measuring Streamflow

USGS hydrologist Greg Clark measures streamflow on Government Gulch Creek, a tributarty to the Coeur d'Alene River in northern Idaho. Streamflow data collected are included in the Coeur d'Alene Basin Environmental Monitoring Program the USGS conducts in cooperation with the Environmental Protection Agency.

Image: USGS Hydrologic Technician Measuring Streamflow
March 25, 2014

USGS Hydrologic Technician Measuring Streamflow

A U.S. Geological Survey hydroloic technician measures streamflow in the Blackfoot River at the site of USGS streamgaging station 13063000, Blackfoot River above Blackfoot Reservoir near Henry, ID. Streamfow data collected at the streamgage and by manual measurements such as this were included in a selenium study conducted in cooperation with the Idaho Department of

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Image: Monitoring Mercury in Fish Tissue
March 9, 2014

Monitoring Mercury in Fish Tissue

USGS biologist Terry Maret holds a channel catfish samples as part of a mercury monitoring program conducted by the USGS and the City of Boise.

Image: Fish Sampling on the Lower Snake River
October 30, 2013

Fish Sampling on the Lower Snake River

USGS biologist Terry Maret (left) joins a colleague from Idaho Power Company for cooperative fish sampling on the lower Snake River near Murphy, ID. Fish tissue samples were collected from selected fish to analyze for the presence of mercury as part of a monitoring program the USGS is conducting in cooperation with the City of Boise.

Image: Radio-Tagging Bull Trout on the North Fork Boise River
September 18, 2013

Radio-Tagging Bull Trout on the North Fork Boise River

USGS biologist Terry Maret displays a bull trout (Salvelinus confluentus) that was radio-tagged as part of a USGS-Bureau of Reclamation study of bull trout migration in the upper Boise River basin. A weir used to capture fish is visible in the background. Bull trout are listed as a threatened species by the U.S. Fish and Wildlife Service.

Image: Aftermath of Beaver Creek Wildfire
September 3, 2013

Aftermath of Beaver Creek Wildfire

Turbidity of Big Wood River from Beaver Crk fire runoff near stream gage 13135500 Big Wood River nr Ketchum, ID

Image: Aftermath of Beaver Creek Wildfire
September 3, 2013

Aftermath of Beaver Creek Wildfire

Turbidity of Big Wood River from runoff of Beaver Crk fire near stream gage 13135500 Big Wood River nr Ketchum, ID

Image: Water-Quality Study in Historical Idaho Mining District
June 25, 2013

Water-Quality Study in Historical Idaho Mining District

USGS Hydrologic Technician Keith Hein carries water-quality samples past USGS streamgage 13311250 on the East Fork of the South Fork Salmon River. The samples were collected as part of a USGS water-quality study conducted in the historical Stibnite Mining District of central Idaho.

Image: Streamgage 13317000, Salmon River at White Bird, Idaho
May 10, 2013

Streamgage 13317000, Salmon River at White Bird, Idaho

U.S. Geological Survey hydrographer Doug Ott inspects the gagehouse at streamgage stations 13317000, Salmon River at White Bird, Idaho, May 10, 2013. The flow at the gage was approximately 40,000 cubic feet per second at the time of this photo.

Image: Coeur dAlene Basin Environmental Monitoring Program
April 16, 2013

Coeur dAlene Basin Environmental Monitoring Program

The South Fork Coeur d'Alene River near Kellogg, Idaho has been impacted by historical mining activites. Since 2004, the USGS, in cooperation with the Environmental Protection Agency, has maintained a water-quality monitoring program in the Coeur d'Alene and Spokane River basins of northern Idaho and eastern Washington.

Image: Total Phosphorus Mass Balance Models for the Lower Boise River
March 6, 2013

Total Phosphorus Mass Balance Models for the Lower Boise River

USGS hydrologic technician Alvin Sablan calibrates an acoustic Doppler current profiler before collecting a discharge measurement on the Boise River near Caldwell, Idaho. The discharge measurement and other data were used to develop total phosphorus mass balance models for the lower Boise River. The work was conducted in cooperation with the Idaho Department of

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