the great sand dunes became a national park on 1 july 1864.
when did the great sand dunes become a national park?
1 july 1864
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the eventual redesignation as great sand dunes national park and preserve was authorized on november 22, 2000 when president bill clinton signed the congressionally-approved great sand dunes national park and preserve act. the act directed the secretary of the interior to "establish the great sand dunes national park when sufficient land having sufficient diversity of resources has been acquired to warrant its designation." the new designation as a national park and preserve would not be made official until 2004 after sufficient land had been acquired.
great sand dunes national park and preserve