Images

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.

Sunset from the coastal Gulf of Alaska.

Stream at Great Falls, VA.

Lighting above absolutes 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.

A sinkhole formed in a roadway caused traffic to detour around it while it is filled in, stabilized and repaved.

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

A large cooperative project is taking place with Olympic National Park in the Elwha River in anticipation of removal of two dams. Restoration of the entire river to natural free flows will allow returning salmon access to historic spawning grounds.

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.

Wooden piling for instrument pier at Deadhorse geomagnetic observatory.

Instrument pier during concrete pour at Deadhorse geomagnetic observatory.