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Girls standing in a large circle around a volcano monitoring station
August 5, 2019

The GeoGirls Visit a Volcano Monitoring Station at Mount St. Helens

The GeoGirls visit a volcano monitoring station on the east side of Mount St. Helens, finding out how scientists use different monitoring methods (seismic, GPS, tiltmeter) to understand more about the volcano.

GeoGirls 2019 group photo, with Mount St. Helens in the background
August 5, 2019

GeoGirls 2019 Group Photo

GeoGirls 2019 group photo, with Mount St. Helens in the background.

Girls hike along a trail at Mount St. Helens
August 5, 2019

GeoGirls Hike the Pumice Plain at Mount St. Helens

The GeoGirls hike the Pumice Plain at Mount St. Helens, examining lava outcrops and volcanic sediment.

Girls stand in circle with one pointing a paper on the ground
August 5, 2019

The GeoGirls Create Field Drawings

The GeoGirls create field drawings of 1980 pyroclastic flow deposits on Mount St. Helens’ Pumice Plain.

Girls stand in stream and take measurements
August 5, 2019

GeoGirls Hike to Willow Creek

GeoGirls hike to Willow Creek, on Mount St. Helens’ Pumice Plain, to learn more about the ecology of the blast zone and how the area has recovered since the catastrophic May 18, 1980, eruption. Here, they look at stream characteristics and how it has influenced the return of life to the area.

People standing with lights in a dark cave
August 4, 2019

GeoGirls Venture into Ape Cave

GeoGirls venture into Ape Cave, a 2,000-year-old lava tube on the south flank of Mount St. Helens, as they learn about Mount St. Helens’ eruptive history and lava flows.

Girls stand in cave with headlamps lighting a book
August 4, 2019

GeoGirls Venture into Ape Cave II

GeoGirls venture into Ape Cave, a 2,000-year-old lava tube on the south flank of Mount St. Helens, as they learn about Mount St. Helens’ eruptive history and lava flows.

Mount St. Helens, Washington
November 8, 2018

Mount St. Helens, Washington

A field team from the USGS Cascades Volcano Observatory discuss station maintenance plans on the north side of Mount St. Helens, Washington. Pictured in the center of the crater is a steaming lava dome from the 2004-08 eruption, and the fractured surface of Crater Glacier emerging from the gap on the north flank.  

Landscape photo of mountains in distance with low clouds filling valley in mid-ground and pine tress on slope in foreground
October 10, 2018

Sunrise at Mount St. Helens

The sun rises at Mount St. Helens (pictured in the distance), with low-level clouds covering Coldwater Lake. The view is from the Coldwater Science and Learning Center, the site of the 2018 GeoGirls field camp program.

September 25, 2018

First mission: USGS UAS monitors gas emissions at Mount St. Helens

On September 25, 2018, a team of three scientists based at the USGS–Cascades Volcano Observatory conducted the first-ever USGS-led Unmanned Aircraft Systems (UAS) campaign at Mount St. Helens. The UAS survey was conducted with the permission and coordination of the U.S. Forest Service Mount St. Helens National Volcanic Monument.

The team used a multi-rotor UAS (“

September 25, 2018

First mission: USGS UAS monitors gas emissions at Mount St. Helens —AD

On September 25, 2018, a team of three scientists based at the USGS–Cascades Volcano Observatory conducted the first-ever USGS-led Unmanned Aircraft Systems (UAS) campaign at Mount St. Helens. The UAS survey was conducted with the permission and coordination of the U.S. Forest Service Mount St. Helens National Volcanic Monument.

The team used a multi-rotor UAS (“