In the United States Senate , meanwhile , Senate bill S. 531 had already passed on July 1 , 1970 .
In the United States Senate , meanwhile , Senate bill S. 531 had already provided for a 230,000 - acre ( 93,100 ha ) national park alone .
In the United States Senate , meanwhile , Senate bill S. 531 had already passed on July 1 , 1970 , and provided for a 230,000 - acre ( 93,100 ha ) national park alone .