vertical panorama

Last summer I was out at my playground, Red Rock Canyon, waiting for a sunset.  I started out taking what I thought was going to be a three or four frame stitched shot.  As I moved the camera upwards, the clouds still looked great, and the next thing I knew, I was leaning backwards with the camera pointed straight up.  I checked the other horizon and thought I might as well keep going.  Photoshop will not stitch together a shot of completely blue sky or even one with thin wisps.  I wasn’t sure if this setting was going to come together, but it did with no problems.