Images

Three bottlenose dolphins swimming in the water.

Scenic view of coast at Isla Bastimento.

Taken while on the 2007 SW review of the Montana Science Center.

View of gage and stream.

View of USGS gage on the Missouri River at Ft. Benton, MT.

View of river from the gage location looking downstream. 

USGS, DNR, Fish and wildlife service plan a study on the Spring River. A Tri state study

Skagit River, near Concrete, WA

This photograph shows ice-wedge polygons and an eroding shoreline at Cape Halkett on the Beaufort Sea coast of Alaska. Coastal erosion along the Arctic coast is chronic, widespread and potentially accelerating, posing threats to infrastructure important for defense and energy purposes, natural shoreline habitats and nearby Native communities.

Stream flowing in Highland County Virginia, June 26, 2006. Photograph by Samuel H Austin.

View of the Green River along a trail in Mammoth Cave National Park.  USGS operates gages on the river above and below the Park Boundaries. 

View of the Green River along a trail in Mammoth Cave National Park.  USGS operates gages on the river above and below the Park Boundaries. 

Coconut palm, sea grapes, and a white sand beach overlooking Drake's Passage from the island of Tortola in the British Virgin Islands.

Resource professionals stand in the rain beside a mountain stream.

USGS hydrologist conducts a ground-penetrating radar survey to investigate and characterize the shallow subsurface. The survey was conducted as part of an applied research effort by the USGS Office of Groundwater Branch of Geophysics in 2006.

USGS hydrologist conducts a two-dimensional (2D) resistivity survey to investigate and characterize the shallow subsurface. The survey was conducted as part of an applied research effort by the USGS Office of Groundwater Branch of Geophysics in 2006.

Streamwater flowing over a rural road in Highland County, Virginia, June, 2006.

Sediment cores from lakes and reservoirs can be used to reconstruct contaminant histories in watersheds. Sediment-core analyses indicate that concentrations of PAHs in many U.S. urban lakes are increasing, and multiple lines of evidence indicate that the source of the PAHs in coal-tar-based pavement sealants.

Dust was collected from sealcoated pavements across the U.S. Concentrations of polycyclic aromatic hydrocarbons (PAHs) in dust from sealed pavement in the East, where coal-tar-based products are used, was about 1,000 times higher than in dust from sealed pavement in the  West, where asphalt-based products are used.

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park. A burned tree is in the foreground from a previous wildland fire.

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park.