Well, I went backstage a few times, and saw it tucked away in the corner, if you can find Toronto photos (there aren't many) you can see the pride rock uses the stepped design (looks like a bunch of steps) not a sloping design, this is for it to straighten out when it tracks off stage, they even showed me the tracks and the mechanism that changes tracks for when it goes from going around in a circle to going straight offstage
http://www.flickr.com/photos/27199361@N08/ Phantom at the Royal Empire Theatre