Yellowstone is wonderful. It takes many days to see everything, so allow yourself enough time to get the full experience.
If you would ever want to live inside Yellowstone for a season as an employee for the park, visit www.yellowstonejobs.com
Grand Teton National Park is adjacent to Yellowstone at the South entrance. One fee will allow you access to both. The Tetons are breath taking and you must take atleast one day to view them in the park. Jackson, Wyoming is the nearest town, with an airport and many places to stay, shop, and eat. Also, while in the Grand Teton National Park, a stop at Jackson Lake Lodge is a pleasure for an afternoon snack. Be sure to ask around for how to get to the "Cunningham Cabin," an old protected cabin with a beautiful view of the Tetons.
Driving at night is best avoided in both parks. The darkness is unimaginable, and the large wild animals tend to stand on the warm roads after dark.
I love Yellowstone and Yosemite - but they are SO crazy busy in the summer - so now I go to Buffalo National Park set in the oldest mountains in the USA - the Ozarks. You can float the clear river by kayak, stopping at beaches for picnics - rock climbing or trekking to waterfalls... nature at it's best! For luxury lodge that sleeps up to 10 people, check out: http://www.anedodi.com
In USA , Shenandoah National Park is one the biggert park.This national park is long and narrow, with the broad Shenandoah River and valley on the west side, and the rolling hills of the Virginia Piedmont on the east. Although likely the most prominent feature of the Park is the scenic Skyline Drive.
The park is best known for Skyline Drive. It offers backcountry and wilderness camping. While in the backcountry, campers must use a "Leave No Trace" policy.
Many waterfalls are located within the park boundaries.Dark Hollow Falls is another scenic trail of the Skyline drive which ends up in waterfalls.
Visitors who hike down to see the waterfall call it a worthwhile experience.
We just got back from our trip to Yellowstone and it was so awesome! Don't bring your dog unless you've setup a dogsitting service in advance. We had no choice but to bring ours cause we full-time in our RV (our home is our RV!). Anywho, one thing i regret is not going swimming! There's a bridge at the north end of the park near the MT and WY border. Just before the bridge is a park, stop there, put on your trunks and walk down the path. The water feels cold, but I've been told that down that path is a hot spring.
yellowstone and yosemite are incredible, it is true. but there are often just sooooo many visitors. instead of going to yosemite 10 times, i would rather go twice and then see 8 of the other, smaller parks. i feel like not enough people visit the small parks: they have nowhere near as many people and each have something amazing to offer.
next time you're driving a long ways, open up your atlas and see if there is a park, ANY park, along the way. stop by and check it out.
if i personally had to choose, i would say glacier national park, yellowstone, yosemite, and big sur. i would LOVE to see some of what alaska has to offer one day.
here's a list of ken burns' favorite national parks. reading it, i forget how much i love maine, and i want to include mt. desert island and acadia national park. and duh, the grand canyon.