12 Little-Known National Park Hikes That Should Be On Your Bucket List

The perfect dozen: Embark on one of these 12 treks, and turn America's most iconic preserves into your own private paradise.

With 330 million visitors last year, you might think that America's national parks don't have much solitude left. Not true: As these trips prove, even the most-visited preserves hide spectacularly uncrowded trails. From a weekend to weeks of hiking, tackle these 12 trips for a taste of the parks' wide-open side.