Pine Beetle Infestation (IMAGE) University of Colorado at Boulder Caption The 2001-2002 drought gave the mountain pine beetle a running start in devastating forests in the southern Rocky Mountains. Credit University of Colorado Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.