Originally Posted by Larrison
If you're going to go to other National Parks (it sounds like you're going to at least 2 -- Death Valley and the Grand Canyon), consider getting the $50 annual pass. You buy it at the entrance station to the Grand Canyon, and in Death Valley, at the Visitors Center, I believe. It will give you entrance to any National Monument or National Park in the US for a year. Cost for the Grand Canyon is about $30 if memory serves, and around $10 at Death Valley if memory serves, so if you want to go to one more place, you'll end up ahead.