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Prepping the Drilling Location in an Ice Patch
August 30, 2016

Prepping the Drilling Location in an Ice Patch

Field assistants prepare the trail and drilling location.

Researchers Break Near the Ice Patch
August 30, 2016

Researchers Break Near the 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 Prepping the Drilling Location on the Ice Patch
August 30, 2016

Researchers Prepping the Drilling Location on the Ice Patch

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

Researchers Pulling a Deep Ice Core Segment
August 30, 2016

Researchers Pulling a Deep Ice Core Segment

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.

Researchers Pulling a Deep Ice Core Segment
August 30, 2016

Researchers Pulling a Deep Ice Core Segment

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.

Researchers Pulling a Deep Ice Core Segment
August 30, 2016

Researchers Pulling a Deep Ice Core Segment

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.

Researchers retrieving ice cores from an ice patch
August 30, 2016

Researchers retrieving ice cores from an ice patch

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

Bottom of the Ice Core
August 29, 2016

Bottom of the Ice Core

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. 

Researcher Hauling the Ice Drill
August 29, 2016

Researcher Hauling the Ice Drill

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

Researchers Preparing to Drill in an Ice Patch
August 29, 2016

Researchers Preparing to Drill in an Ice Patch

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

Researchers Starting the Ice Core
August 29, 2016

Researchers Starting the Ice Core

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

Researchers Drilling the top meter of the Ice Patch
August 29, 2016

Researchers Drilling the top meter of the Ice Patch

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.

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USGS
April 16, 1998

Although agriculture and urban activities have substantially affected water quality in several areas of the South Platte River Basin, concentrations of pesticides and volatile organic chemicals (VOCs), such as MTBE, are generally below levels of concern for human health, according to the results of a 5-year investigation of water quality by the U.S. Geological Survey.