America's 63 national parks and hundreds of additional NPS-administered sites offer an impressive range of sights and experiences, from vast deserts to towering mountains, and everything in between. However, these natural treasures don't always come without a cost.

Many of America's most famous national parks require entry fees to access, with heavy hitters like the Grand Canyon, Yellowstone, and Yosemite all charging upwards of $35 for single-person admission.

Even more annoyingly, some of the more popular national parks have implemented timed-entry reservation requirements for the busy summer season . While this is ultimately helpful for mitigating large crowds and heavy traffic, it does present an additional potential headache for visitors.

The good news, however, is that steep e

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