The 20 most-visited national parks in the U.S.
America's Most Visited National Parks
America's 58 national parks feature some of the country's most amazing views, natural formations and wildlife. These include Yellowstone's world-famous geysers, Olympic's rain forests in Washington and Arches' sweeping rock formations in Utah.
Each year, millions travel to these parks. Here are the 20 most-visited. America's most popular park may surprise you. It's not Yosemite, the Grand Canyon or Yellowstone.
-- Jason La and Deborah Netburn
Pictured: Half Dome and fall leaves are reflected in the Merced River on a postcard-perfect fall day at Yosemite National Park.