From the NRA:
The U.S. Department of the Interior (DOI), through the National Park Service and U.S. Fish and Wildlife Service, has announced the final amended version of its changes to rules on carrying of firearms in national parks and wildlife refuges. DOI's move will restore the rights of law-abiding gun owners who wish to transport and carry firearms for lawful purposes on most DOI lands, and will make federal law consistent with the state law in which these public lands are located. NRA led the effort to amend the existing policy regarding the carrying and transportation of firearms on these federal lands.
This is great news! It means that if you can leagally carry a gun outside the park than you can inside the park. The Brady group is trying to spin this as dangerous guns in the park, but if you are trusted outside the park with a gun why not inside where you may need it to defend yourself or family from wild animals?
Another win for the pro gun folks!