US NEWS PARKS-GUNS 2 FR

The museum adjacent to the Yosemite Visitors Center displays one of several stickers on doors designating specific area as gun-free in Yosemite Valley, March 17, 2010. Federal law now allows visitors to carry guns in national parks, but you can?t just slip a loaded pistol into your backpack and take a hike. You will need a concealed weapons permit to carry the loaded gun in the backpack. (Eric Paul Zamora/Fresno Bee/MCT)