When it comes to James Turrell's Skyspace concept, a light-based phenomenon that has spread around the world at more than eighty sites, it's the location that counts. Colorado's, installed in the Red Butte Recreational Area East off Highway 24 last year by Green Box Arts, is not only the first in our state, but it's also the first in the world to be built on a mountaintop. Turrell says that the altitude on the butte in Colorado causes the sky to glow a deeper blue color that increases its intensity and effect, which is meaningful in Skyspace-speak. We are very lucky, indeed.