Oh, there's the Tobacco Root mountains, off in the distance. . .
And then I looked closely. . .
They aren't actually giant, 11,000 foot mesas. It was what's known as a superior mirage, as opposed to the inferior ones you see on the ground. It was really, really, exceptionally strange. There was no shimmering, and it looked like this the whole 15 minutes or so we were up on top of the Bridgers looking at them.
Here's some photos from the last 4 big scenic bike rides
Curly Lake: A newly popular ride in the Tobacco roots, starts with around 4,000 feet of uphill to just over 10,000 feet, then it's a loooooooong way back down.
The Bridger Ridge: It was a goal of mine for some time to ride the Bridger ridge trail all the way from Fairy Lake to the M. It was pretty cool being way up there for 20 some miles.
The Gallatin Crest: A remote ride from Hyalite Peak to Windy Pass on the "Devils Backbone". This trail is close to being closed to bikes. http://www.imba.com/resources/wilderness/montana/index.html
Italian Peaks: Another threatened trail, it features the coolest spring ever.