285 is mostly 1 lane in each direction but is well traveled and maintained. As always, keep your rig geared down on the descents, be courteous and use turnouts and don't forget to bring your fly rod and camera. There are some classic trout streams/rivers you will be passing close by but I can't give everything away.
Stop in Fairplay for the famed South Park origins.
Always check 285 road conditions before proceeding because there could be the freak snow storm occurring even during summer months...most likely not but never hurts to be completely prepared.