Images

View out over the Crescent Lake landslide from the headscarp (left foreground) of the Red Bluffs landslide, looking toward Stevenson, Washington and the Columbia River.

Bathymetry data of Columbia River mouth, derived from an interferometric swath bathymetry systems survey in 2013. A) Swath map of data; B-E) sample detail pull-outs

Cableways allow hydrologic technicians to safely measure streamflow. Here, a technician measures flood waters. 

Path of small debris flows originating above Butte Camp, Mount St. Helens, Washington.

Debris flow in channel near Butte Camp, Mount St. Helens, Washington.

A hydrologic technician wades across the Sauk River to measure streamflow at USGS streamgage 12186000. The staff gage in front of the boulder can be used to read the water level. 

South Cascade Glacier, northwestern Washington State. South Cascade Glacier located in a north-northwest facing valley near the crest of the Cascade Range in northwest Washington state. In 1959 scientists with the USGS began collecting mass balance data on South Cascade Glacier, now one of five "benchmark glaciers" in the US.

USGS hydrologist Mark Reid looks at one of the many grabens (extensional basins) that formed as the Oso landslide swept across the North Fork Stillaguamish River valley.

Juvenile wolf eel - Scuba divers from the U.S. Geological Survey’s Western Fisheries Research Center, Washington Sea Grant, EPA and the Lower Elwha Klallam Tribe collected data and images from a long-term study of the Elwha River dam removals and the resulting effects on the nearshore ecosystem.

Moon snails - Scuba divers from the U.S. Geological Survey’s Western Fisheries Research Center, Washington Sea Grant, EPA and the Lower Elwha Klallam Tribe collected data and images from a long-term study of the Elwha River dam removals and the resulting effects on the nearshore ecosystem.

A USGS researcher takes algae samples at Bear Creek in Redmond, Washington.

Salmonids are inventoried during the ecosurveys done for the Regional Stream Quality Assessment (RSQA)

Land Remote Sensing Image of Mount St. Helens on May 22, 1983. The volcanic blast on May 18, 1980, devastated more than 150 square miles of forest within a few minutes. In this Landsat false-color images, forest appears as bright red interspersed with patches of logging. Snow appears white, and ash is gray.

Northern spotted owls (Strix occidentalis caurina) are mostly non-migratory, long-lived birds whose populations have declined in mature forests of western North America.

Fish health principle investigators, students, post-docs, and technicians from different research groups work together as a fish processing team on days when large numbers of fish require sampling.  They are collecting multiple tissues from each fish for testing virus infection and host immune response.

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

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.

Flyer for the Mount St. Helens Teacher Workshop. Held June 25-27, 2014, it was a workshop for middle school teachers.

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.

Scientist collection samples on South Cascade Glacier, northwestern Washington State. South Cascade Glacier located in a north-northwest facing valley near the crest of the Cascade Range in northwest Washington state. In 1959 scientists with the USGS began collecting mass balance data on South Cascade Glacier, now one of five "benchmark glaciers" in the US.

USGS-CVO Research Geologist Peter Kelly communicates with the helicopter pilot and prepares for pick-up, on the new dome within the crater of Mount St. Helens.