Images

USGS gage 13039500 Henry's Fork near Lake ID.

Little Missouri River at Medora, North Dakota, with the badlands in the background.

Aerial view of a USGS dye tracer study done on the Kootenai River in Idaho.

Low flow with exposed rocks on the Knife River near Golden Valley, North Dakota.

View of the Spring Run near the gage, downstream of the main vent. 

Atlantic Ocean sunrise as seen from a Florida beach.

Panoramic photograph of Hailey, Idaho, looking southeast from Carbonate Mountain. 

Five brown pelicans during one of their early morning flights along the Atlantic coast of Florida.

Five brown pelicans during one of their early morning flights along the Atlantic coast of Florida.

Five brown pelicans during one of their early morning flights along the Atlantic coast of Florida.

Researcher holding several Potamocorbula amurensis in an outstretched hand during a sampling trip aboard the R/V Polaris.

View of the White Cliffs in the evening light from a location about 500 ft. upstream of the USGS gage. 

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking downstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174
http://pubs.usgs.gov/sir/2009/5174/

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking downstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking upstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174
http://pubs.usgs.gov/sir/2009/5174/

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking upstream from FM 1462 bridge, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking upstream from right bank, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking downstream from FM 1462 bridge, August 7, 2008.
USGS SIR 2009–5174

Artistic canoes used during the 2008 Coast Salish Annual Canoe Journey. 

The longear sunfish is a freshwater fish in the sunfish family. An increase in sunfish in southeastern streams, intentionally stocked or unintentionally transplanted, has caused the composition of fish species among streams in the Southeast to become more similar. Such homogenization of species is an emerging and pervasive threat to biodiversity.

USGS scientist John Shelton using high-tech hydroacoustic equipment to measure the depth and velocity of the Congo River.