Images

Pier jacket prior to concret pour 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.

Sinkholes affect structures as well as many types of supporting infrastructure such as buried utilities lines seen here. 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 fro

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.

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.

Sunset from the coastal Gulf of Alaska.

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.

A storm clears at sunset at Rodeo Cove, California.

Lower Yellowstone Falls, Yellowstone River.

Stream at Great Falls, VA.

Lighting above absolutes pier at Deadhorse geomagnetic observatory.

Cracking along exterior walls is a sign of subsidence activity. Such severe structural damage from sinkholes can destroy homes and other structures.

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.