By John Spina You’ve heard of service dogs, but how about service llamas? For those with disabilities, regaining access to the trail systems surrounding Boulder is a life changer, but it takes a huge amount of work. With the help of a llama, however, those with disabilities can venture further, go faster and stay longer. Tuesday afternoon Boulder Open Space and Mountain Parks and Pack Animal Magazine held an event to try and raise awareness about the benefits of llamas as service animals in the backcountry.