Helicopter Flight to Mount Redoubt
Scientists from the USGS Alaska Volcano Observatory (AVO) examine deposits on the lobe of the Drift Glacier with the summit of Mount Redoubt and its steaming lava dome in distance. This photo was taken during the first helicopter flight funded by the American Recovery and Reinvestment Act funds, whi...
Location: USA

Horseshoe Lake
View of tree kill area at Horseshoe Lake in the Long Valley Caldera along the east side of the Sierra Nevada in east-central California....
Location: CA, USA

Hot Creek Bridge
Hot Creek with bridge. Date unknown but the bridge has not been in existence for several years....
Location: CA, USA

Horseshoe Lake Bathroom
Sign above bathroom at Horseshoe Lake announcing CO2 hazard. Notice the ventilation in the bathroom....
Location: CA, USA

CO2 Hazard Area sign
CO2 Hazard sign at Horseshoe Lake....
Location: CA, USA

Landsat: Mt. Redoubt
Landsat 5 image of the Mt. Redoubt area on March 26, 2009 at 1:07 PM AKDT. The false color image shows the large brown ash cloud extending over the Cook Inlet and the western Kenai peninsula (right sid of image). The image also shows a whiter steam and gas plume rising from the summit of Redoubt Vol...
Location: AK, USA

Science Collaboration on Ol Doinyo Lengai Volcano
USGS volcanologist David Sherrod discusses activity at Ol Doinyo Lengai volcano with the Director of the Tanzanian Geological Survey, Abdul Mruma, as a local Maasai woman observes....
Location: Tanzania

Ol Doinyo Lengai Volcano
The village of Naiyobi, about 5 miles from the summit of Ol Doinyo Lengai, has had ashfall from recent eruptions that have impacted residents and their cattle....
Location: Tanzania

Ol Doinyo Lengai Volcano
Scientists from the Volcano Disaster Assistance Program team and the Geological Survey of Tanzania take a sample of the most recent ashfall from Ol Doinyo Lengai as the volcano looms in the background....
Location: Tanzania

Surveying Ol Doinyo Lengai Volcano
USGS Scientist David Sherrod surveys Ol Doinyo Lengai Volcano in Tanzania with scientists from the Geological Survey of Tanzania and local villagers....
Location: Tanzania

Science Collaboration on Tanzanian Hazards
USGS Scientist Gari Mayberry discusses the volcano hazards in Tanzania with a scientist from the Geological Survey of Tanzania....
Location: Tanzania

Science Collaboration on Ol Doinyo Lengai Volcano
USGS Scientist David Sherrod and a guide complete digging for ash samples from the most recent eruption of Ol Doinyo Lengai Volcano in Tanzania....
Location: Tanzania

USGS and President of Tanzania
USGS Volcano Disaster Assistance Program Representative (VDAP) Gari Mayberry presents the draft VDAP report to President Kikwete of Tanzania with the Charge d'Affairs Larry Andre....
Location: Tanzania

Alaska Volcano Observatory Operations
Research geologist Michelle Coombs monitors information on Redoubt during a restless period....
Location: Anchorage, AK, USA

Redoubt Volcano Observation Flight
USGS scientist Heather Bleick prepares documentation equipment for a flight over Redoubt Volcano....
Location: Anchorage, AK, USA