Derert Rock IV (Colorado plateau) has one if I recall. I also think there's one in an odd 'best of' desert book, perhaps Fred knapp. I don't know why the guy above is being secretive with his pdf, perhaps they're working a new line or something.
Basically follows the main obvious system on east face. P1. Bring a selection of pins and nail up and thru roof. P2/3 ish follow crack system to ledge cave 5.10 or C1. P4 nail or freeclimb the roof and continue up main system. The last pitch or two seems to branch slightly left.
Pizem tried to free the route a while back, and supposedly everything but the first pitch goes.
We tried a clean ascent in '08 but failed at that, pins are necessary (although I've since become crafty with beaks, I think you'd still need a hammer)
Also, S Platte pioneer Peter Williams lives in Dinosaur, he's been around there a long time and probably has his ear a bit closer to the ground regarding recent ascents.
Enjoy Weber sandstone, or don't.