Crestone is located in the San Luis Valley in southern Colorado, and the Dome is at 980 Peaceful Way, Crestone, CO 81131 (google map). From Denver, the fastest route is via Rt. 285 through Fairplay (approx 3 hrs 30 min); however, the most scenic route to Crestone takes the high route through the mountains via I70 through Silverthorne and then south through Leadville (about 20 minutes longer, provided you don’t hit winter storms or weekend traffic on I70!).
from TripInfo (by permission)