The north end of this trail starts at the Blue Sky trailhead/parking, the south end meets up with Devil's Backbone, and it intersects with Rim Rock Trail around the middle. Indian Summer also branches off of Blue Sky, so there are many possibilities for this trail.
There is one set of steps in the north half of this trail that most people will walk, though advanced riders may be able to find a line. Near the south end of this trail there are steps and obstacles crossing the ridge line that most people will walk. Other than these, the trail is mostly clear of obstacles, doesn't have any very steep grades, and flows incredibly well. With tons of linkup and variations available, Blue Sky is not one to miss.
Note that there are a number of blind corners on Blue Sky and it can be crowded on weekends. Ride safely.