The Dutch Hill Campground at Steamboat Lake State Park once was densely packed with lodgepole pine. But blue marks on bark now dominate the landscape, identifying the beetle-killed trees awaiting removal. The mountain pine beetle epidemic sweeping Colorado forests has taken a heavy toll on Steamboat Lake and Pearl Lake state parks, whose campgrounds were closed in October after being deemed unsafe after trees starting falling much earlier than expected... The epidemic will have a drastic impact on camping availability in the summer. Crews will begin cutting down beetle-killed and beetle-infected trees in Steamboat Lake State Park later this month,...