I've got Friday off and the wife is doing something with her mother so I figure, if I leave early, I have a solid half day to go play in the 40. I've been interested in checking out the Gravelly Range road for a while. Is it reasonable to think I can get to Ennis from Bozeman, drive some (probably not all) of the road, find my way back out to 287, and get back to Bozeman by noon?