Images

USGS scientists collect field data at Gulkana Glacier in the eastern Alaska Range. The checkerboard sampling pattern in the foreground indicates where snow pit density measurements were collected.

Marine technician Dan Powers, from the Pacific Coastal and Marine Science Center's Marine Facility (PCMSC MarFac), wears all the required personal protective equipment: bib waders, personal floatation device, and mask.

View of the recently cleared Boiling Pots on the Wailuku River in Hilo. The pots, each about 15 m (50 ft) in diameter, are eroded into a 10,000 year old Mauna Loa lava flow. When the water is low, the river does not flow over some of the pot rims but it continues to flow through them.

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

USGS hydrologist Ken McGrath measures floodwaters off a cableway on Schoharie Creek in North Blenheim, New York.

Grand Prismatic Spring in Midway Geyser Basin Yellowstone National Park on October 19, 2017.

Rich Kim works on giant gartersnake trap building. 

Sunset lake in Black Sand Basin of Yellowstone National Park

USGS hydrographer Dave Thompson makes a near-peak flood measurement off a bridge at Tenmile River in Tusten, New York.

HVO staff work together while maintaining social distancing as they install different parts of the new Mauna Loa summit MultiGAS station on April 27. In the left side of the image, an HVO field engineer connects solar panels to the batteries that will power the MultiGAS station.

Recent warm weather has increased flow in the North Platte River to above average for the date at the streamgage at Northgate, CO (just upstream of the WY-CO stateline). Real-time data online at: http://ow.ly/vodL50zt6YO

When wetland plants in the northeast emerged this spring, USGS scientists were working from home and unable to start many planned research activities. However, many instruments were already deployed and continued to collect information critical to USGS research.

The relationship between Δ30 and N2/3He ratios in hydrothermal gases from Iceland and Yellowstone. Δ30 and N2/3He ratios are shown for samples collected from gases in Iceland (yellow circles) and Yellowstone (red circles). The Yellowstone mantle-endmember is arguably indistinguishable in terms of N2/3He from the convecting upper mantle (grey diamonds).

Researchers Liz Gallegos and Adam Backlin releasing California red-legged frog tadpoles into a temporary enclosure as part of an international translocation. The tadpoles were collected from the Sierra San Pedro Martir mountains of Baja California, Mexico and transported to two sites in the United States.

Adam Backlin and Elizabeth Gallegos translocatw an egg mass of the California Red Legged Frog from a donor site in the mountains of Baja California MX. The recipient site, where the photo was taken, was at Mesa Grande in San Diego County.

USGS stream gage 14314500 Clearwater River above Trap Creek near Toketee Falls, OR.

On April 27, HVO field engineers and a gas geochemist conducted fieldwork to increase HVO's volcano-monitoring capabilities. Staff installed a MultiGAS station to collect volcanic gas data from within Moku‘āweoweo, Mauna Loa's summit caldera. The work was carried out with permission of Hawai‘i Volcanoes National Park.

Eastern newt (Notophthalmus viridescens) in Wisconsin.

Geologic Map of the Southern Flank of Mauna Loa Volcano, Island of Hawai‘i