Hells Canyon on the Snake River.
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Hells Canyon on the Snake River
Hells Canyon on the Snake River.
USGS hydrologist measuring groundwater level in a well
After receiving permission from the homeowner, a U.S. Geological Survey hydrologist measures the water level in a well.
After receiving permission from the homeowner, a U.S. Geological Survey hydrologist measures the water level in a well.
WFRC DFAT for detection of Renibacterium salmoninarum
Direct fluorescent antibody test (DFAT) for the detection of Renibacterium salmoninarum in tissues. Fluorescing R. salmoninarum cells are visible on a slide.
Direct fluorescent antibody test (DFAT) for the detection of Renibacterium salmoninarum in tissues. Fluorescing R. salmoninarum cells are visible on a slide.
Alsea River in Autumn near Alsea Falls, Oregon
The Alsea River in the Oregon Coast Range
The Alsea River in the Oregon Coast Range
USGS scientists collect a sediment sample from Brownlee Reservoir
Scientists from the U.S. Geological Survey and Idaho Power Company collected water, sediment, and biological samples from Brownlee Reservoir as part of an ongoing, cooperative study of mercury cycling in the Hells Canyon complex of reservoirs along the Snake River bordering Idaho and Oregon.
Scientists from the U.S. Geological Survey and Idaho Power Company collected water, sediment, and biological samples from Brownlee Reservoir as part of an ongoing, cooperative study of mercury cycling in the Hells Canyon complex of reservoirs along the Snake River bordering Idaho and Oregon.
Legacy of Mount St. Helens 1980 eruption still defies perfect solution
Aerial view of Spirit Lake (center) looking north from above the crater of Mount St. Helens. The lake's outlet to the west (left) was blocked by the 1980 landslide, which required a new engineered outlet to maintain the lake at a safe level. A tunnel was drilled through a bedrock ridge on west side of lake in 1984-1985. Glacier covered Mount Rainier in distance.
Aerial view of Spirit Lake (center) looking north from above the crater of Mount St. Helens. The lake's outlet to the west (left) was blocked by the 1980 landslide, which required a new engineered outlet to maintain the lake at a safe level. A tunnel was drilled through a bedrock ridge on west side of lake in 1984-1985. Glacier covered Mount Rainier in distance.
GPS device on Kootenai River
A GPS device on the banks of the Kootenai River of northern Idaho, where USGS EROS researchers conducted topobathymetry surveys in 2017 using LiDAR and sonar equipment.A GPS device on the banks of the Kootenai River of northern Idaho, where USGS EROS researchers conducted topobathymetry surveys in 2017 using LiDAR and sonar equipment.
A GPS device on the banks of the Kootenai River of northern Idaho, where USGS EROS researchers conducted topobathymetry surveys in 2017 using LiDAR and sonar equipment.A GPS device on the banks of the Kootenai River of northern Idaho, where USGS EROS researchers conducted topobathymetry surveys in 2017 using LiDAR and sonar equipment.
Boat on Kootenai River
A boat moves off the banks of the Kootenai River in northern Idaho. Researchers from USGS EROS conducted topobathymetry surveys of the river in 2017 using LiDAR and sonar equipment.
A boat moves off the banks of the Kootenai River in northern Idaho. Researchers from USGS EROS conducted topobathymetry surveys of the river in 2017 using LiDAR and sonar equipment.
Kootenai River from boat
A view of the Kootenai River in northern Idaho from a boat. USGS EROS researchers conducted topobathymetry surveys of the river in 2017 using LiDAR and sonar equipment.
A view of the Kootenai River in northern Idaho from a boat. USGS EROS researchers conducted topobathymetry surveys of the river in 2017 using LiDAR and sonar equipment.
Sockeye salmon preparing to spawn
Sockeye salmon preparing to spawn upstream of Cle Elum Dam, Washington.
Sockeye salmon preparing to spawn upstream of Cle Elum Dam, Washington.
Skagit Bay bathymetry
Skagit Bay bathymetry
Temporary seismometers deployed at Mount St. Helens.
Between August 19-22, 2017, 140 seismometers were deployed around Mount St. Helens. Instruments were placed on top of the 2004-2008 lava dome, the 1980-86 lava dome, the 1980 crater floor, and around the volcanic cone.
Between August 19-22, 2017, 140 seismometers were deployed around Mount St. Helens. Instruments were placed on top of the 2004-2008 lava dome, the 1980-86 lava dome, the 1980 crater floor, and around the volcanic cone.
Mount St. Helens, as viewed from the Castle Lake Overlook.
Mount St. Helens, as viewed from the Castle Lake Overlook.
Mount St. Helens, as viewed from the Castle Lake Overlook.
GeoGirls_Sediment1
GeoGirls collect water samples and flow measurements to model the transport of volcanic sediments.
GeoGirls collect water samples and flow measurements to model the transport of volcanic sediments.
Collecting water quality data at Coldwater Lake
GeoGirls collect water quality data at Coldwater Lake and sieve landslide deposits to learn more about the impact of the 1980 eruption and the transport of volcanic sediment.
GeoGirls collect water quality data at Coldwater Lake and sieve landslide deposits to learn more about the impact of the 1980 eruption and the transport of volcanic sediment.
GeoGirls deploy seismometers
GeoGirls deploy seismometers at Mount St. Helens and learn how to interpret earthquake data.
GeoGirls deploy seismometers at Mount St. Helens and learn how to interpret earthquake data.
Balloon Mapping
A balloon and simple point-and-shoot camera is used to collect digital images that are stitched together to build a 3D elevation model of the landscape.
A balloon and simple point-and-shoot camera is used to collect digital images that are stitched together to build a 3D elevation model of the landscape.
GeoGirls use ground-penetrating radar
GeoGirls use ground-penetrating radar to locate rock and ash layers from past eruptions at Mount St. Helens (Mount Adams is pictured in the background).
GeoGirls use ground-penetrating radar to locate rock and ash layers from past eruptions at Mount St. Helens (Mount Adams is pictured in the background).
GeoGirls with their mentors, teachers, and scientists
Meet the GeoGirls, their high school mentors, teacher mentors and scientists at the GeoGirls media day on August 1, 2018.
Meet the GeoGirls, their high school mentors, teacher mentors and scientists at the GeoGirls media day on August 1, 2018.
Mount St. Helens, WA seen from the flank of Mount Adams to east.
Mount St. Helens, Washington seen from the flank of Mount Adams to the east.
Mount St. Helens, Washington seen from the flank of Mount Adams to the east.
GeoGirls explore the Ape Cave lava tube
At Mount St. Helens, the GeoGirls explore the Ape Cave lava tube and learn how to interpret the layers left in the rock wall.
At Mount St. Helens, the GeoGirls explore the Ape Cave lava tube and learn how to interpret the layers left in the rock wall.