I’m hiking up a rocky, winding trail near the old mining town of Minturn, Colorado, a fuzzy llama named Ringo traipsing enthusiastically behind me. The chocolate-and-cream-colored animal, with ears the size of bananas and breath that could sink a warship, sails over a fallen log like he’s got springs in his legs. He hums like an idling vehicle, flashes a crooked smile, and sighs loudly.Llamas make fantastic hiking partners. Besides carrying saddlebags filled with sandwiches, cheese, and tiramisu, they can haul spare rain jackets, camera lenses, and water. They’re even happy to tote tents and sleeping bags, should you decide to stay the night. And, unlike even the most beloved of human hiking partners, they don’t complain.I learned this during a recent trip to Vail,…