Images

Lucas watches Danny Stahle catalog a sample taken froma long frozen Whitebark Pine (Pinus albicalus).

Danny Stahle assesses the preservation of Whitebark Pine melting out of an ice patch.

Craig Lee and a group of archeologist take a break and enjoy the scenery while standing over the coolers (white boxes) containing the ice core samples.

Researchers retrieving ice cores from an ice patch located on the Beartooth Plateau, Wyoming. 

Mike Jayred, Nathan Challman, Rachel Reckin, and Danny Stahle work to lift an section of ice core from several meters deep in the ice patch.

Mike Jayred, Nathan Challman, Rachel Reckin, and Danny Stahle work to lift an section of ice core from several meters deep in the ice patch.

Mike Jayred, Nathan Challman, Rachel Reckin, and Danny Stahle work to lift an section of ice core from several meters deep in the ice patch.

Field assistants prepare the trail and drilling location.

Danny Stahle, Rachel Reckin, and Sari Dersam prepare the trail and drilling location.

Mike Jayred cares the "Priaire Dog" Ice Drill to the coring location.

Mike Jayred and Nathan Chellman work to level the ice drill to begin taking the core.  Craig Lee stabilizes the platform.

Mike Jayred runs the drill while Greg Pederson stabilizies the outer barrel.  Craig Lee and Danny Stahle wait to assist with extraction of the first meter of ice.

Craig Lee holds the ice drill with the end of the first ice core segment exposed.  The sample will next be measured, logged, and processed in the field. 

Nathan Chellman, Mike Jayred and Lucas (Dog) stage equipment on the drilling platform.

Mike Jayred runs the drill while Greg Pederson stabilizies the outer barrel.  Craig Lee and Danny Stahle wait to assist with extraction of the first meter of ice.

Aerial photo of Sperry Glacier, Digital Globe image taken 08/26/2016. Aerial imagery, like this photo of Sperry Glacier, is used to create digital elevation models (DEMs) used to extrapolate mass balance field measurements over the entire glacier.

An ancient ice patch located in the northeastern corner of the Greater Yellowstone Ecosystem

Craig Lee and Mike Jayred scout a potential drilling location for extracting an ice core.

An ancient ice patch located in the northeastern corner of the Greater Yellowstone Ecosystem.

USGS - NOROCK field team in the Northern Cascades studying Hoary marmots and American pika and snowpack dynamics.  

An American bullfrom is native to most eastern states, but considered invasive in the moutain west.