http://gallery.usgs.gov/images/logos/usgs_only.jpg http://gallery.usgs.gov/ en-us OC_Web@usgs.gov (Office of Communications Web Group) http://gallery.usgs.gov/images/USGS.gif http://gallery.usgs.gov/ http://gallery.usgs.gov/photos/05_14_2013_vBRd72Gts5_05_14_2013_0 U.S. Geological Survey hydrographer Doug Ott inspects the gagehouse at streamgage stations 13317000, Salmon River at White Bird, Idaho, May 10, 2013. The flow at the gage was approximately 40,000 cubic feet per second at the time of this photo.

]]> http://gallery.usgs.gov/photos/02_22_2013_y17Gxk3WVq_02_22_2013_0 USGS biological science aid, Jeff Beasley, retreives a temperatue logger from the Missouri River near Decatur, NE.

]]> http://gallery.usgs.gov/photos/02_21_2013_fja4DQo10W_02_21_2013_0 Ice on the MO River near Omaha, NE.

]]> http://gallery.usgs.gov/photos/01_28_2013_fKBm15Pdc8_01_28_2013_0 Cover image: USGS Circular 1381. View of Boulder Basin, Lake Mead, at sunset looking east. The flat topped mountain in the background is Fortification Hill, a well-known landmark in the viewshed from Hoover Dam.

]]> http://gallery.usgs.gov/photos/01_28_2013_fKBm15Pdc8_01_28_2013_1 Scientist holding Razorback sucker fish caught and to be released for survey of razorback sucker populations in Lake Mead.

]]> http://gallery.usgs.gov/photos/01_28_2013_fKBm15Pdc8_01_28_2013_2 Scientist sampling fish at Lake Mead.

]]> http://gallery.usgs.gov/photos/01_28_2013_fKBm15Pdc8_01_28_2013_3 USGS shallow-water, automated, water-quality data-collection platform in Las Vegas Bay, Lake Mead.

 

]]> http://gallery.usgs.gov/photos/01_28_2013_fKBm15Pdc8_01_28_2013_4 View of Boulder Basin, Lake Mead from Fortification Hill.

]]> http://gallery.usgs.gov/photos/01_28_2013_fKBm15Pdc8_01_28_2013_5 View of Hoover Dam and Lake Mead from the Mike O'Callaghan–Pat Tillman Memorial Bridge (Colorado River Bridge).

]]> http://gallery.usgs.gov/photos/12_17_2012_d28Kb54AAu_12_17_2012_0 An acid mine drainage discharge forms a plume in a stream in the Appalachian region.

]]> http://gallery.usgs.gov/photos/12_17_2012_d28Kb54AAu_12_17_2012_1 Sampling acid mine drainage residuals in Elk County, Pennsylvania.  The USGS has pioneered a new use for these residuals that are currently a disposal challenge, using them to filter phosphorus from agricultural and municipal wastewaters.

]]> http://gallery.usgs.gov/photos/12_17_2012_d28Kb54AAu_12_17_2012_2 Dried acid mine drainage residuals that are formed during treatment of the drainage.  The USGS has pioneered a new use for these residuals that are currently a disposal challenge, using them to filter phosphorus from agricultural and municipal wastewaters.

]]> http://gallery.usgs.gov/photos/12_17_2012_d28Kb54AAu_12_17_2012_3 Tom Kehler, fishery biologist at the U.S. Fish and Wildlife Service's Northeast Fishery Center in Lamar, Pennsylvania, checks the flow rate of water leaving a phosphorus filter column. The USGS has pioneered a new use for acid mine drainage residuals that are currently a disposal challenge, using the residuals in plastic columns like the ones pictured to filter phosphorus from agricultural and municipal wastewaters.  The Northeast Fishery Center helped the USGS test the concept, and currently filters more than 1000 gallons per day. 

]]> http://gallery.usgs.gov/photos/12_14_2012_m62Tlx8KJe_12_14_2012_0 A rainbow arches over the Owyhee Canyonlands wilderness area at the site of USGS streamgage 13176400, East Fork Owyhee River at Crutcher Crossing, ID. The U.S. Bureau of Land Management will use data from this gage to secure water rights to protect Wild and Scenic Rivers in the wilderness.

]]> http://gallery.usgs.gov/photos/12_14_2012_m62Tlx8KJe_12_14_2012_1 This new streamgage, USGS 13176400, East Fork Owyhee River at Crutcher Crossing, ID, will provide critical data the U.S. Bureau of Land Management needs to secure water rights to protect the Owyhee Canyonlands wilderness area.

]]> http://gallery.usgs.gov/photos/12_14_2012_m62Tlx8KJe_12_14_2012_2 This new streamgage, USGS 13176400, East Fork Owyhee River at Crutcher Crossing, ID, will provide critical data the U.S. Bureau of Land Management needs to secure water rights to protect the Owyhee Canyonlands wilderness area.

]]> http://gallery.usgs.gov/photos/12_14_2012_m62Tlx8KJe_12_14_2012_3 This new streamgage, USGS 13176400, East Fork Owyhee River at Crutcher Crossing, ID, will provide critical data the U.S. Bureau of Land Management needs to secure water rights to protect the Owyhee Canyonlands wilderness area.

]]> http://gallery.usgs.gov/photos/10_22_2012_kof6IVt22C_10_22_2012_0 The turbid waters of the Elwha River and the coastal waters of the Strait de Fuca mix directly offshore of the river mouth, forming a large coastal plume.  This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river.  Two large dams on the Elwha River are being incrementally removed from 2011 to 2013 to restore river functions in this important salmon-bearing river. During early stages of the removal project, hundreds of thousands of tons of fine-grained sediment (mostly silts and sands), trapped for decades behind the dams, were released causing turbidity in the river and coastal waters.

 

]]> http://gallery.usgs.gov/photos/10_22_2012_kof6IVt22C_10_22_2012_1 The turbid waters of the Elwha River and the coastal waters of the Strait de Fuca mix directly offshore of the river mouth, forming a large coastal plume.  This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river.  Two large dams on the Elwha River are being incrementally removed from 2011 to 2013 to restore river functions in this important salmon-bearing river. During early stages of the removal project, hundreds of thousands of tons of fine-grained sediment (mostly silts and sands), trapped for decades behind the dams, were released causing turbidity in the river and coastal waters.

 

]]> http://gallery.usgs.gov/photos/10_22_2012_kof6IVt22C_10_22_2012_2 The turbid waters of the Elwha River and the coastal waters of the Strait de Fuca mix directly offshore of the river mouth, forming a large coastal plume.  This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river.  Two large dams on the Elwha River are being incrementally removed from 2011 to 2013 to restore river functions in this important salmon-bearing river. During early stages of the removal project, hundreds of thousands of tons of fine-grained sediment (mostly silts and sands), trapped for decades behind the dams, were released causing turbidity in the river and coastal waters.

 

]]> http://gallery.usgs.gov/photos/10_17_2012_d2XKc54bau_10_17_2012_0 USGS hydrologic technician James Foreman operates an electronic deployment reel from a bridge over the Elwha River, Washington. Two large dams on the Elwha River are being incrementally removed from 2011 to 2013 to restore river function in an important salmon-bearing river. The USGS is sampling sediment from the river during the dam-removal project to quantify the magnitude and timing of sediment released during the restoration project. One third to one half of 24 million cubic yards of sediment is expected to be released and flow downstream during the next 3 to 6 years.

 

]]> http://gallery.usgs.gov/photos/10_17_2012_d2XKc54bau_10_17_2012_1 USGS researchers Chris Curran and Raegan Huffman retrieve instrumentation to measure sediment concentration from the Elwha River, Washington. Two large dams on the Elwha River are being incrementally removed from 2011 to 2013 to restore river function in an important salmon-bearing river. The USGS is sampling sediment from the river during the dam-removal project to quantify the magnitude and timing of sediment released during the restoration project. One third to one half of 24 million cubic yards of sediment is expected to be released and flow downstream during the next 3 to 6 years.

 

]]> http://gallery.usgs.gov/photos/10_17_2012_d2XKc54bau_10_17_2012_2 USGS research ecologist Jeff Duda collects discharge data on a side channel of the Elwha River. Two large dams on the Elwha River are being incrementally removed from 2011 to 2013 to restore river function in an important salmon-bearing river. During early stages of the removal project, hundreds of thousands of tons of fine-grained sediment (mostly silts and sands), trapped for decades behind the dams, were released covering much of the lower river corridor in mud.

 

]]> http://gallery.usgs.gov/photos/09_28_2012_qVl8PCb54I_09_28_2012_0 USGS researcher Craig Allen stands on the edge of Mesa Alta, amid diverse forest and woodland in the uplands of northern New Mexico; note some recently dead ponderosa pine and Douglas-fir in the field of view. Forest drought stress is strongly correlated with tree mortality from poor growth, bark beetle outbreaks, and high-severity fire.

]]> http://gallery.usgs.gov/photos/09_28_2012_qVl8PCb54I_09_28_2012_1 These photos show the kind of massive forest die-off that is projected to occur more frequently in the Southwest. Piñon pines, normally evergreen, have reddish-brown foliage in October 2002 (left). By May 2004 (right), the dead piñon pines have lost all their needles, exposing gray trunks and branches. The photos were taken from the same vantage point near Los Alamos, N.M. Forest drought stress is strongly correlated with tree mortality from poor growth, bark beetle outbreaks, and high-severity fire.

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