We have business in Idaho Falls area in Mid November 2013. Wanting to Visit Yellowstone, Grand Teton National Park and Jackson Hole in mid Nov 2013. We know that's not a great time....but, we can't change the date. Any suggestions would be great! ( Unless, someone has a much better suggestion:). Most info tells us it is too early for snowmobiling and all entrances are closed to automobiles....except the North Entrance. We would really like to enjoy the area while we are there! Thanks in advance for any suggestions!!!