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Red rock, slot canyons and the biggest views in the country. Spring and fall are the sweet spot here, because summer afternoons regularly top 100 degrees.













Geysers, glaciers and alpine lakes. Most high mountain roads only fully open in summer, so plan these for July through September.













Giant waterfalls, misty mountains and rocky coastline. These are the parks to save for spring waterfalls and fall color.













The guidebooks and passes that make planning a parks road trip easier, including the bestsellers road-trippers are reading right now.







