Everyone has a different idea on how much hanging space they need, but if you look at the pictures of the bedroom in the Montana High Country that are on the Keystone website:
http://www.keystonerv.com/montana-high-country/ it appears that there is some hanging room over the washer/dryer space as well as a little alongside them as well.
My question then would be: How much dust/dirt and hot/wet air are circulated in the closet when the washer/dryer are in use?
From the floorplans I've seen, no, there isn't any other place to hang clothes other than the front closet in most models. The bunkhouse models do have a small closet in the bunkhouse, but those floorplans are not as "spacious" for two people as the conventional floorplans.