A crusade to combat the proliferation of poop in Colorado’s backcountry entered a new frontier this week with the creation of a “Clean 14” initiative focusing on the state’s iconic 14,000-foot peaks.

You probably don’t think of your poop as art or a book, but each time you finish doing your, um, business, your fecal matter tells a story. That’s because we are what we eat, and whatever we eat ...