<p>We've made a winter trip a number of years now. We stay in Gardiner just outside the north entrance and usually stay at the Absaroka which is $60 night this winter. You can book a snowmobile trip from a couple of businesses that run out of Mammoth. We have done this only once and it was ok but difficult to really concentrate on photographing animals. If I remember correctly they can only stop in certain places.<br /> The other option as far as the northern part of the park is concerned is the road to Cooke City where spotting sheep, otters, eagles and wolves is hit or miss but certainly doable. Many people hike or cross country ski up the Tower Fall road.<br /> As far as the Tetons we usually stay in town at the Super 8 which really varies in price but have paid as low as $40 a night a few times. The Gros Ventre road into Kelly will sometimes turn up moose, coyotes, eagles and sage grouse. Moose-Wilson road is open to Death Canyon and you may get lucky and see a great gray owl. The area around Oxbow Bend will occasionally have otters popping their heads out of holes in the ice. Behind Miller Butte and the elk refuge the sheep graze on the hillside and of course elk on the refuge. As you know the south entrance is closed so you have to drive down the west side of the park to cross over Teton Pass into Jackson but it is a beautiful drive and for part of it you are inside the Yellowstone Park boundary.<br /> It's fun and beautiful but of course there are no bears!<br>
I should add if you take the 89 south out of Jackson toward Alpine look for the mountain goats on the cliff sides as you get near Alpine.</p>