Thanks to the California Desert Protection Act, Death Valley National Park is the Biggest Park in the Coterminous U.S.
On October 31, 1994, the California Desert Protection Act redesignated Death Valley from National Monument to National Park and added 1.3 million acres to the new National Park’s holdings. In one fell swoop, Congress had transferred bragging rights for “biggest park in the 48-state U.S.” from Yellowstone to Death Valley.