We’ve been keeping track on the progress of James Turell’s Roden Crater for a couple of years through its slow progression. Though he’s had numerous gallery exhibitions, the crater has been his life’s work for the past three decades. Turell is a light artist, his work has included holograms and site specific installations that play on the manipulation of light. With the support of the Dia Art Foundation and other donors, Roden Crater’s completion may come within a year. Few have seen its progress, some have been fortunate enough to visit the site with Turell’s guidance, while others have found their own way onto the property by trespassing. When Roden Crater opens, it will be an art pilgrimage of a lifetime. Until then, follow the progress on its Facebook page and site and watch this BBC broadcast from 2008.