America's most popular national parks
It's Day 2 of summer. If you don't have vacation plans yet, you're behind. Fortunately, there's an easy solution. Visit one of America's 58 national parks. They encompass some of the country's best natural sights, including Alaska's pristine wilderness, Yellowstone's hot springs, Utah's rock formations and Hawaii's volcanoes. As a starting point for your vacation planning, here's a look at the 10 most-visited in 2011.
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( Mark Boster / Los Angeles Times )
Visitors in 2009 (through August): 3.2 million
Established in 1919, the Grand Canyon is perhaps the most famous of America's national parks. It is an enormous stretch of canyon: 277 miles long (measured by the length of the river at its bottom), 6,000 vertical feet at its deepest and as much as 18 miles across in some places. It takes about two days to get to the bottom of the canyon and back on foot. And it receives close to 5 million visitors each year.
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