Beetle-killed pine trees that have been clear cut are piled up on national forest land outside Grand Lake, Colorado April 8, 2010. Colorado has 3 million acres of forest killed by a tiny bug called the mountain pine beetle. When the beetle crawls under the bark to feed on the tree it brings with it a fungus that kills the tree. A byproduct of the fungus is a distinctive blue stain that streaks the wood. Different businesses are trying to come up with ways to use the all the dead trees - the stained wood is prized for its unique color for paneling and flooring. REUTERS/Rick Wilking (UNITED STATES)