Images

Photograph of north and eastern rim of the 9400-year-old Turbid Lake explosion crater showing the primary explosion ejecta rim with a secondary explosion ejecta rim inside the lake-occupied explosion crater.  Many, if not most, larger explosion craters have multiple explosion histories and are long-lived hydrothermal systems. 

This is a sunset on the Front Range of Colorado in summer.

Scientists sample a rough-skinned newt for the fungal pathogen Batrachochytrium salamandrivorans, or Bsal, at a pond near Portland, Oregon. Bsal is decimating wild salamander populations in Europe and could emerge in the U.S. thro

Chris Zimmerman sampling a stream in the drainage of the Agashashok River which is in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.

Shrubland in Senegal, photographed in 1994 by U.S. Geological Survey Scientist G. Gray Tappan as part of his work on West African land cover. Tappan photographed the scene again in 2010.

Shrubland in Senegal, photographed in 2010 by U.S. Geological Survey Scientist G. Gray Tappan as part of his work on West African land cover. Tappan previously photographed the scene in 1994.

Organics analytical section, USGS National Water Quality Laboratory, Lakewood Colorado, 2016. Photograph by Mark Nilles, U.S. Geological Survey

On Friday afternoon, three areas of spattering on the summit lava lake surface produced abundant volcanic gas emissions, one of the main hazards near the Halema‘uma‘u Crater vent. Earlier this morning, spattering lava was visible from a safe distance at Jaggar Museum Overlook in Hawai‘i Volcanoes National Park.

Candy striped shrimp with sand rose anemone - 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 for a long-term study of the Elwha River dam removals and the resulting effects on the nearshore ecosystem.

Can you do the Charleston? This animated GIF takes frames from a USGS video on the gila monster and reverses them to make this Southwestern lizard shake his tail...or perhaps dancing the Charleston. 

Sensors are cleaned with an automatic wiper brush on the continuous water-quality monitors. 

Clown nudibranch - 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.

Cluster of tubeworms - 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.

Fan hydroids - 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.

Ground point survey with Trimble S6 robotic total station and prism and rod techniques, measuring depth of streambed to assess bridge scour on West Gallatin River near Belgrade, MT

In July of 2016, a team from the Climate and Land Use Research and Development Program took a trip to South Carolina to study outcrops of the “Canepatch” and “Socastee” formations along the Intra-Coastal Waterway, near Myrtle Beach. The age of these fossiliferous marine units has been controversial for several decades.

In July of 2016, a team from the Climate and Land Use Research and Development Program took a trip to South Carolina to study outcrops of the “Canepatch” and “Socastee” formations along the Intra-Coastal Waterway, near Myrtle Beach. The age of these fossiliferous marine units has been controversial for several decades.

 Aerial photograph of active lava lake in Hale maʻumaʻu Crater at the summit of Kīlauea volcano.

Perched on the rim of Kīlauea Volcano's summit caldera, the USGS Hawaiian Volcano Observatory and NPS Jaggar Museum (foreground) overlook the active lava lake within Halema‘uma‘u Crater. The black lava flows to the left and right of the fuming vent spilled onto the crater floor in April-May 2015, when the lava lake briefly filled to overflowing.

In July of 2016, a team from the Climate and Land Use Research and Development Program took a trip to South Carolina to study outcrops of the “Canepatch” and “Socastee” formations along the Intra-Coastal Waterway, near Myrtle Beach. The age of these fossiliferous marine units has been controversial for several decades.

USGS scientist sampling tap water from a public-water supply.