Images

USGS hydrologist conducts a broadband electromagnetic survey in New Orleans, Louisiana. The survey was one of several geophysical methods used during USGS applied research on the utility of the multi-channel analysis of surface waves (MASW) seismic method for non-invasive assessment of earthen levees.

USGS hydrologists conduct a seismic survey in New Orleans, Louisiana. The survey was one of several geophysical methods used during USGS applied research on the utility of the multi-channel analysis of surface waves (MASW) seismic method (no pictured here) for non-invasive assessment of earthen levees.

Helicopter flying toward lava spine at Mount St. Helens to collect rocks—note the "Jaws" collector hanging underneath. April 28, 2007

Storm coming in over Cheney Reservoir, Kansas

USGS personnel measuring flood overflow near Whitey's Restaurant in East Grand Forks.

Temporary dike located South of Main Avenue Bridge in Fargo, North Dakota.

Wyoming-Montana Water Science Center comparison discharge measurement

The Flint River below Bainbridge, Georgia, showing base flow conditions. Even at low flows, rivers in this part of Georgia contain enough sediment to color the water brown.

Single species stand of nonnative tamarisk on the Lower Colorado River at Cibola National Wildlife Refuge, California

Nonnative tamarisk is resistant to wildfire, in part because of its ablity to re-sprout.

Nonnative tamarisk is resistant to wildfire, in part due to its ability to resprout

Tamarisk plants have been sucessful in southwestern US river- and stream-side habitats, in part because of its ablity to make many flowers and, therefore, seeds.

This orchid variety was photographed at Selby Botanical Gardens in Sarasota, Florida.

A sage-grouse hen ready for release after being radio-marked and having an identification band placed on her left leg.

Researcher from Klamath Falls Field Station downloading data during a flood on the Williamson River Oregon.

Back view of the Powell River Aquatic Research Station.

Old Faithful Geyser in eruption. Under Yellowstone Research Permit YELL-SCI-8030, 13 mineralized wood specimens were collected from the geyser mound. The dates of the mineralized wood samples imply that such eruptions did not take place for over a century between the mid-13^th to mid-14^th centuries.

‘I‘iwi are one of the most charismatic Hawaiian honeycreepers extant today. Their long, curved bill allow them to reach nectar deep inside specially evolved Hawaiian flowers. As they mature, juvenile ‘i‘iwi will go from these mottled, multi-colored feathers to bright red coloration. 

Red River of the North flooding the 1st Avenue North Bridge in Fargo, ND.

Eric Reghr and Kristin Simac working on an anesthetized polar bear

Photograph taken during a Land Cover Trends Project field trip in California of a valley with residential housing.