Yellowstone and Grand Teton are more than photo ops and zoos where the animals roam free. They aren't museums, either, where magnificent scenery is merely on display. Both parks, unlike a picture hanging lifelessly on the wall of a museum, are works in progress; they are living, breathing wilderness areas. Plant your feet in a comfortable pair of walking or hiking shoes, find a trail head, and set off into the woods with a sack lunch and big bottle of water. Better yet, if you can afford the time, plan an excursion around Shoshone Lake or to the south end of Yellowstone Lake by boat to areas few visitors ever see. There are isolated areas in Grand Teton, too -- even on the far shore of popular Jenny Lake -- where, with a little hiking, you'll be rewarded by a pristine, forested glade with nothing to distract your attention but wild moose and an awe-inspiring mountaintop.
If you're more adventurous, take a white-water trip down Snake River Canyon, or let a guide take you up to Grand Teton's summit. In Yellowstone, sleep under the stars and listen to the wolves howl at Slough Creek Campground; or backpack for a week on the Thorofare Trail.
You'll never plumb the absolute depths of these parks -- no one ever will. You can spend your whole life trying, though, and have a great and illuminating time doing it.
It's no one's idea of a fun vacation to end up sucking exhaust behind a long line of cars waiting for a break in construction at Yellowstone's east entrance, or wearing a T-shirt in a Montana snowstorm. Few things can ruin a much-anticipated vacation more than poor planning. So look over some of the crucial information in this guide before you hit the road -- it might be the difference between a trip you'll never forget and one you'd rather not remember.
