<Li> Regional designations of Montana </Li> <Li> South Central Montana </Li> <Li> Yellowstone National Park </Li> <Ul> <Li> Nebraska Panhandle </Li> <Li> Northwest Nebraska </Li> <Li> Pine Ridge </Li> <Li> Rainwater Basin </Li> <Li> Sand Hills </Li> <Li> Southeast Nebraska </Li> <Li> South Central Nebraska </Li> <Li> Wildcat Hills </Li> </Ul>

How many regions are there in the us