Images

Wooden piling for instrument pier at Deadhorse geomagnetic observatory.

Instrument pier during concrete pour at Deadhorse geomagnetic observatory.

Instrument pier after concrete pour at Deadhorse geomagnetic observatory.

Window prior to glass installation at Deadhorse geomagnetic observatory.

More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The sinkholes destroyed homes, roads and sections of cultivated areas.

More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The sinkholes destroyed homes, roads and sections of cultivated areas.

More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The sinkholes destroyed homes, roads and sections of cultivated areas.

Sinkholes damage roadways and require constant maintenance for road safety. More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures.

Sinkholes damage roadways and require constant maintenance for road safety. More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures.

A section of a strawberry field that was destroyed by a sinkhole and filled in, as is done with many sinkholes if possible.

Hydrologic Technician James Foreman prepares to  attach an external load of equipment to an approaching helicopter as part of  the nutrient loading to alpine lakes project.

Russ Buesing uses a cable car to access streamgage 05104500 in late winter (March 26, 2009) on the Roseau River below South Fork near Malung, MN.

USGS scientist sets up a repeat photograph of Grinnell Glacier in Glacier National Park to illustrate glacial recession due to impacts of climate change.

Longtail boats are an important part of the Thai seafaring economy. A nationwide ban on logging has caused the value of the boats to skyrocket.

Vegetation clings to a nearly soil free landscape, showing vivid autumn colors.

A submarine berg emerges from the advancing terminus of Yahtse Glacier. Iceberg calving is a key process in the global sea level budget.

Salmon and steelhead migrating through Bonnerville Dam.

A storm clears at sunset at Rodeo Cove, California.

Lower Yellowstone Falls, Yellowstone River.

Gordon Haxel (USGS, Flagstaff) explains the Jurassic geology of the Baboquivari Mountains, Arizona. Kitt Peak, Arizona, November 2009. Bob Powell (USGS, Tucson) holds the map.

Long-distance shot of headframe in Miami-Globe mining district.