Images

A view from a canoe of ripples on musky central american water.

Surface-water dissolved iron sampling from a ship, while underway, through Teflon-lined tubing secured to a rope, towed from one meter below the surface, using a continuously pumping system.

Butterfly pollinating a flower.

Snow drifts in early May at the mouth of the Copper River.  Just a mile or two away from here, at the same elevation, there was no snow. Shown are Woods Hole (MA) scientists Andrew Schroth (left) and Kevin Kroeger (right).

Two immature Elk test and develop their abilities.

Pier jacket prior to concret pour at Deadhorse geomagnetic observatory.

Concrete pour for pier 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.

A chipmunk resting in the natural camoflage.

Sunset in Thailand.

USGS employee training baby whooping cranes to follow ultralight aircraft.

Mine Blast at Silver Bell Mine, Arizona.

Older Bison who was very friendly and thought he was going to be fed.

A immature elk is very interested in being photographed.

Waterfall at Hayden Run.

Kids in Grant Park enjoy a fountain.

Newly constructed building ready for deployment at Deadhorse geomagnetic observatory.

Bill Worthington in un-heated building during construction at Deadhorse geomagnetic observatory.