Locations
Yellowstone
West Thumb Basin
When most people want visual impact, they think of Yosemite or the Grand Tetons. The visual impact of Yellowstone is much more discreet and, in fact, you sometimes have to look for it.
There are few other places where a photographer has so much opportunity to play with landscape, steam , and the sun. The colder it is, the greater the amount of steam. In late September, morning is prime shooting time. The wind manipulates the steam very quickly so its kind of fun just to hang out in one location for awhile and shoot a couple rolls of film to see what turns out. Beware, the end results on film may be considerable different than what you thought you visualized.