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Plume of white water and steam emanating from a dark pool of water in a barren area, trees and blue sky in background
Echinus Geyser in eruption in 2017
Echinus Geyser in eruption in 2017
Echinus Geyser in eruption in 2017

Echinus Geyser in eruption on October 24, 2017.  Photo by MA Bellingham, used with permission.

View of the Silver Gate landslide complex from Bunsen Peak, Yellowstone National Park
View of the Silver Gate landslide complex from Bunsen Peak
View of the Silver Gate landslide complex from Bunsen Peak
View of the Silver Gate landslide complex from Bunsen Peak

View of the Silver Gate landslide complex from Bunsen Peak in Yellowstone National Park.  The landslide originates from Terrace Mountain.

Weir on a tributary flowing into Boundary Creek in southwest Yellowstone National Park
Weir on a tributary flowing into Boundary Creek in southwest Yellowstone National Park
Weir on a tributary flowing into Boundary Creek in southwest Yellowstone National Park
Weir on a tributary flowing into Boundary Creek in southwest Yellowstone National Park

A weir constructed by Irving Friedman and Dan Norton to measure water discharge and to monitor changes in hydrothermal activity on a tributary flowing into Boundary Creek in southwest Yellowstone National Park. USGS photo by Shaul Hurwitz, September 17, 2017.

A weir constructed by Irving Friedman and Dan Norton to measure water discharge and to monitor changes in hydrothermal activity on a tributary flowing into Boundary Creek in southwest Yellowstone National Park. USGS photo by Shaul Hurwitz, September 17, 2017.

Testing the feasibility of real-time eDNA monitoring
Testing the feasibility of real-time eDNA monitoring
Testing the feasibility of real-time eDNA monitoring
Testing the feasibility of real-time eDNA monitoring

Elk are not concerned with our work. USGS and the Monterey Bay Aquarium Research Institute conducted tests of the feasibility of real-time eDNA monitoring at USGS streamgage 06190540 Boiling River at Mammoth,YNP, September 13, 2017.

Elk are not concerned with our work. USGS and the Monterey Bay Aquarium Research Institute conducted tests of the feasibility of real-time eDNA monitoring at USGS streamgage 06190540 Boiling River at Mammoth,YNP, September 13, 2017.

Cleaning the trench
Teton Fault
Teton Fault
Teton Fault

Mark, Nicole, Rich, Ryan, Dean taking out the "trash" from the base of the trench.

Mark, Nicole, Rich, Ryan, Dean taking out the "trash" from the base of the trench.

Focal mechanism determined by moment tensor analysis on an M4.4 event in Yellowstone National Park in 2017
Focal mechanism determined by moment tensor analysis on an M4.4 event in Yellowstone National Park in 2017
Focal mechanism determined by moment tensor analysis on an M4.4 event in Yellowstone National Park in 2017
Focal mechanism determined by moment tensor analysis on an M4.4 event in Yellowstone National Park in 2017

Focal mechanism determined by moment tensor analysis, which uses a model to fit the long-period (~10 s period or greater) ground motion records recorded at multiple locations.

Collecting sample for pesticide analyses, Big Horn River near Kane, WY
Collecting sample for pesticide analyses, Big Horn River near Kane, WY
Collecting sample for pesticide analyses, Big Horn River near Kane, WY
Collecting sample for pesticide analyses, Big Horn River near Kane, WY

Sample collection from cableway above Big Horn River near Kane, Wyoming as part of project evaluating pesticides in Wyoming.

Newly emerged adult wetsalts tiger beetle
Newly emerged adult wetsalts tiger beetle
Newly emerged adult wetsalts tiger beetle
Newly emerged adult wetsalts tiger beetle

A newly emerged adult wetsalts tiger beetle. Photo by Robert K. D. Peterson, 2017.

View of mountain and creek from Yellowstone National Park northeast entrance road.
Amphitheater Mountain and Soda Butte Creek Yellowstone
Amphitheater Mountain and Soda Butte Creek Yellowstone
Amphitheater Mountain and Soda Butte Creek Yellowstone

Amphitheater Mountain and Soda Butte Creek viewed from the Yellowstone National Park northeast entrance road. 

Panoramic photo of the West Yellowstone rhyolite lava flow
Panoramic photo of the West Yellowstone rhyolite lava flow
Panoramic photo of the West Yellowstone rhyolite lava flow
Panoramic photo of the West Yellowstone rhyolite lava flow

Panoramic of the West Yellowstone rhyolite lava flow taken along Highway 20 (between the West entrance of Yellowstone National Park and Madison Junction). The flow is approximately 111,000 years old and has a volume of about 41 km3 (10 mi3). 

Panoramic of the West Yellowstone rhyolite lava flow taken along Highway 20 (between the West entrance of Yellowstone National Park and Madison Junction). The flow is approximately 111,000 years old and has a volume of about 41 km3 (10 mi3). 

A geologist examples a basaltic lava flow along the Madison River
A geologist examples a basaltic lava flow along the Madison River
A geologist examples a basaltic lava flow along the Madison River
A geologist examples a basaltic lava flow along the Madison River

A geologist examples a basaltic lava flow along the Madison River, looking for an area that can yield samples suitable for 40Ar/39Ar geochronology.  USGS photo by Jorge Vazquez, June 2017.

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