U.S. national parks have a range of rules and restrictions. Some are not so known, like the souvenir-driven ban in Yosemite , while others are simply peculiar, like Yellowstone's noise ban . But perhaps the most bizarre of them all can be found in the hottest national park in America, which straddles the states of Nevada and California .

Death Valley National Park is the driest place in North America, with a record dry stretch of 0.64 inches of rain in over 40 months. It is also the fifth-largest national park in the U.S., spanning 3.4 million acres. With so much space and extreme heat, it is no wonder that the park's rules would include a weirdly explicit ban. Only it is not quite related to these characteristics.

Death Valley's bizarre ban is related to surface water, which is

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