How Pine Bark Beetles Created an Elaborate and Deadly Mess

Cal Wettstein presides over a sea of dead and dying trees the size of Connecticut.

Across his domain, hillsides blanketed with lodgepole pines are in the final throes -- their needles are turning red, or their trunks are tipping precariously to one side. Others are already rotting on the forest floor.

Voracious bark beetles are known for leaving a formidable trail of destruction in their wake, and at this point, there is nothing that can be done to stop them.