FILE: Meadow and mountains in Kings Canyon National Park.

Two of California’s most revered national parks are the latest to enact the National Park Service’s controversial policy prohibiting visitors from paying their entrance fees in cash. 

Starting May 21, Sequoia and Kings Canyon national parks will no longer accept cash at their entrance stations, the park service announced in a news release Tuesday. The parks are the latest to enact the policy, which the park service says will improve the efficiency and security of fee handling among park........

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