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Historical marker location:

220 Prison Hill Road, Yuma, Arizona

( Marker is on Prison Hill Road west of South Levee Road, on the right when traveling south.)

The Grand Canyon was not always a national park: The Grand Canyon was first designated a national monument by President Theodore Roosevelt in 1908, and it was not until 1919 that it became a national park. Today, the Grand Canyon is one of the most popular tourist destinations in the world.