The mountain pine beetle epidemic continued to decline in 2014 to its lowest level of active infestation in 17 years. Statewide, the mountain pine beetle was active on 23 square miles last year ...

CHEYENNE – The mountain pine beetle outbreak that spanned almost two decades is all but over locally, but dead and dying trees remain.

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 ...