Melting ice reveals secret buried in the Rocky Mountains not seen for 6,000 years

Melting alpine ice in the Rocky Mountains has led to the discovery of a 5,900-year-old whitebark pine forest. Over 30 trees are estimated to have been found by scientists during an archaeological survey on the Beartooth plateau in Wyoming. The newly uncovered trees are located at 3,100 metres sea level which is 180 metres higher than the present tr...