They need to sweep the roads when the snow is gone...especially the canyons . Actually it seems that winds have cleared some of the gravel off.Last weekend I rode up the South St Vrain canyon (Lyons->Allenspark) and the Lyons -> Estes Park canyons and they were clear.
Gravel scares the hell out of me. :-[
The only time I ever dropped a moving bike was in a parking lot on gravel. It's just like hitting ball bearings. When riding the canyons I always try to keep in the ruts made by cars. Those are usually clear.