USGS Image Gallery Collection for:

http://gallery.usgs.gov/images/logos/usgs_only.jpg USGS Image Gallery Collection for: http://gallery.usgs.gov/ en-us OC_Web@usgs.gov (Office of Communications Web Group) http://gallery.usgs.gov/images/USGS.gif USGS http://gallery.usgs.gov/ <![CDATA[Topographer George Stanley Druhot running a level line on oil-shale cliffs north of the Colorado River. The level line was one mile long and climbed 2,000 feet over talus slopes.]]> http://gallery.usgs.gov/photos/10_19_2009_txo0Red5QL_10_19_2009_0 <![CDATA[Topographer George Stanley Druhot with a plane table and alidade. Recorder R.H. Moore is sitting against the Pierce Arrow in the background. A stadia rod is visible on the second car.]]> http://gallery.usgs.gov/photos/10_19_2009_txo0Red5QL_10_19_2009_1 <![CDATA[Topographer George Stanley Druhot with a plane table and alidade while mapping the Mt. Constance quadrangle on the Olympic Peninsula.]]> http://gallery.usgs.gov/photos/10_19_2009_txo0Red5QL_10_19_2009_2 <![CDATA[Topographer George Stanley Druhot working with a tripod, planetable, and alidade at Kahekili Leap, on the island of Oahu. His two companions are Malcolm Springer and Tai Hai Lau]]> http://gallery.usgs.gov/photos/10_19_2009_txo0Red5QL_10_19_2009_3 <![CDATA[R.R. Monbeck on the rim of Haleakala volcano on the island of Maui]]> http://gallery.usgs.gov/photos/10_19_2009_txo0Red5QL_10_19_2009_4 <![CDATA[Wind energy facility in the Northeastern United States. An unexpected number of dead bats began appearing beneath industrial-scale wind turbines in North America and Europe during the past 10 years.]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_0 <![CDATA[Wind turbines at certain sites in North America each cause dozens of bat fatalities per year. ]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_1 <![CDATA[Most modern wind turbines are taller than a 30-story building. Field biologist Apple Snider stands at the base of a turbine in New York for scale.]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_2 <![CDATA[This photo shows one of the three 135-ft blades of a turbine before installation. Although the blades of wind turbines appear to move quite slowly to the human eye, blade tips often move at speeds faster than 100 mph. ]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_3 <![CDATA[A hoary bat (Lasiurus cinereus) roosting on the branch of a tree. About half of all bat fatalities documented in North America involve hoary bats, a migratory species that roosts in the foliage of trees.]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_4 <![CDATA[A hoary bat (Lasiurus cinereus) found dead beneath a wind turbine, an apparent victim of a blade strike or near-contact barotrauma (lung failure from severe and abrupt pressure change; here, caused by the spinning blades). Prior to the problem of bat fatalities at wind turbines, biologists rarely encountered hoary bats.]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_5 <![CDATA[USGS biologist Paul Cryan examines the carcass of a hoary bat (Lasiurus cinereus) found beneath a wind turbine. By examining the casualties, biologists hope to learn more about why migratory bats are so susceptible to wind turbines. ]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_6 <![CDATA[USGS biologist Paul Cryan. Biologists hope to learn more about the scale and causes of bat fatalities at wind turbines by searching for carcasses of bats beneath turbines and carefully documenting the conditions under which they are found.]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_7 <![CDATA[The species of bats that are most susceptible to wind turbines all roost in trees throughout the year, leading some scientists to speculate that they may be visually mistaking wind turbines for trees in which to roost.]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_8 <![CDATA[Some of the larger wind energy facilities in North America are composed of hundreds of wind turbines dispersed across tens of thousands of acres, like this one in Colorado. ]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_9 <![CDATA[USGS biologist Paul Cryan releases a bat carrying a miniature radio transmitter. Researchers are increasingly turning to high-tech methods to try to learn more about the mysterious lives of bats. ]]> http://gallery.usgs.gov/photos/10_19_2009_s84Aq11PPk_10_19_2009_10 <![CDATA[This Depression-era oil painting was created by USGS field man Hal Shelton in 1940. The painting depicts mapping techniques used in the early days of cartography, including an alidade and stadia rod for determining distances and elevations and a plane-table for sketching contour lines. A USGS benchmark is visible near the top. The straight white lines represent survey transects. Note the "US" marking on the canteen: many of the USGS field supplies were obtained from Army surplus. This 4 ft. x 6 ft. painting is on display in the USGS library in Menlo Park, California. ]]> http://gallery.usgs.gov/photos/10_19_2009_jNEq2UThg0_10_19_2009_0 <![CDATA[Southern African Python (Python natalensis). The snake pictured is a representative of a species discussed in the USGS snake risk assessment. This snake was photographed in its native range.]]> http://gallery.usgs.gov/photos/10_16_2009_h40Of66eey_10_16_2009_0 <![CDATA[Green anaconda in Brazil. The snake pictured is a representative of a species discussed in the USGS snake risk assessment. This snake was photographed in its native range. ]]> http://gallery.usgs.gov/photos/10_16_2009_h40Of66eey_10_16_2009_1 <![CDATA[Yellow anaconda in Argentina. The snake pictured is a representative of a species discussed in the USGS snake risk assessment. This snake was photographed in its native range.]]> http://gallery.usgs.gov/photos/10_16_2009_h40Of66eey_10_16_2009_2 <![CDATA[Deschauensee�s Anaconda (Eunectes deschauenseei). The snake pictured is a representative of a species discussed in the USGS snake risk assessment. This snake was photographed in its native range.]]> http://gallery.usgs.gov/photos/10_16_2009_h40Of66eey_10_16_2009_4 <![CDATA[Beni or Bolivian Anaconda (Eunectes beniensis). Photo by Lutz Dirksen, www.anakondas.de. Used with permission. ]]> http://gallery.usgs.gov/photos/10_16_2009_rVm8PCb55J_10_16_2009_0 <![CDATA[Reticulated python (Broghammerus/Python reticulatus) in Indonesia. Photo �Bjorn Lardner, Colorado State University. Used with permission.]]> http://gallery.usgs.gov/photos/10_16_2009_fka4EQp10W_10_16_2009_0 <![CDATA[Water flowing from Florida Pioneer Oil Company well near Kissengen Spring, 1932.]]> http://gallery.usgs.gov/photos/10_15_2009_tXOb6ED554_10_15_2009_0 <![CDATA[The Northern African Python ( Python sebae ) occurs naturally in a diverse collection of localities in central Africa. The climate-matched portions of the U.S. include peninsular Florida, extreme south Texas, Puerto Rico (right inset), Hawaii (left inset), and the other island territories (not shown)]]> http://gallery.usgs.gov/photos/10_12_2009_mRHt48Wkj1_10_12_2009_0