I know these may not be destinations for this trip, but for future reference or for lurkers, the America the Beautiful federal lands pass also includes
- Lake Mead National Recreation Area (near Las Vegas)
- Hyde Street Pier / San Francisco Maritime National Historical Park
- Mount St Helens National Volcanic Monument (Washington)
- trailhead parking pass / Northwest Trail Pass (Washington & Oregon)
It's a great value for US residents who love the out of doors.
Some folks offer to 'sell' their pass to someone else and allow them to be the second signature on the card. For only $80, you can have lots of access to federally funded lands in the US. It doesn't seem right to cheat the federal lands out of their $80 from another person, but that's just my opinion. "Passes are non-refundable, non-transferable and cannot be replaced if lost or stolen."
Pass info http://store.usgs.gov/pass/index.html
"Covers the pass owner and three (3) accompanying adults age 16 and older at sites where per person entrance fees are charged."
Have a wonderful visit to the US!