if dinosaur canyon is the one with warm springs rapid and called yampa canyon in the bible, then you are hosed unless you know someone with a permit. the deadline for permit applications was jan 31. i also think that to get leftovers you needed to apply for the drawing, but i could be wrong. good luck! for next year take a look at kwagunt.net and click whitewater permits. they have a lot of permit apps with links. there are also many other sites with the same info, rivergeek.com is another.