The Antiquities Act of 1906 does not give the President power to declare National Parks; only National Monuments [1]. This is a mistake in that episode, and the

The Antiquities Act of 1906 does not give the President power to declare National Parks; only National Monuments [1]. This is a mistake in that episode, and the link you cite also mentions this (see the "Trivia" section). [1] https://en.wikipedia.org/wiki/Antiquities_Act https://en.wikipedia.org/wiki/Antiquities_Act