answersLogoWhite

0

Yellowstone National ParkAfter approval of S. 392 in the U.S. Senate and H.R. 764 in the U.S. House of Representatives, President Ulysses S. Grant signed into law the Yellowstone Park Act on March 1, 1872.

It's a Federal Law!

User Avatar

Wiki User

14y ago

What else can I help you with?