The Oldest National Park America’s National Park Service just celebrated its 100th birthday in 2016 But the agency is actually young compared to its oldest park Yellowstone National Park in the western United States turned 144 that same year Its raw beauty helped inspire the idea of national parks in the first place 4
Yellowstone National Park spreads across three western states It fills the northwest corner of Wyoming and then enters eastern Idaho and southern Montana National forests surround the perimeter of the park The Great Divide crosses Yellowstone’s southern half This continental divide marks how water flows to either the Pacific or Atlantic Ocean 6
Montana 10 miles Idaho 10 kilometers Yellowstone National Park Wyoming Montana Yellowstone National Park Great Divide John D Rockefeller Jr Memorial Parkway Next door Neighbor Grand Teton National Park sits just south of Yellowstone A parkway connects the two neighboring parks Grand Teton National Park
