Coring ice patches in the Beartooth Mountains of Montana

Here, researchers are coring ice patches in the Beartooth Mountains of Montana.  Scieintists are studying the remains of tree rings in wood fragments found in ice patches to chart climatic conditions.  Trees that lived for over 400 years were discovered in the ice patches that perished over 5000 years ago helping to reconstruct climatic conditions during the mid-Holocene. Photo credit: Chris Boyer