Curtis Lubben, a member of Cub Scout Pack 4077, helps pick up trash at Liberty Park Tuesday evening. The pack, sponsored by the Unitarian Church in Salt Lake City, gathered a surprising amount of litter from the clean-looking park _ such as bottle caps, cigarette butts, paper cups, plastic forks, candy wrappers, newspapers and even an old glove. The boys and their relatives learned about their duty to Mother Nature, and at the same time, did a good deed.