Grand Canyon celebrates 100 years as a national park in 2019

FILE - In this March 27, 1996, file photo, a mule train winds its way down the Bright Angel trail at Grand Canyon National Park, Ariz. The Grand Canyon is celebrating 100 years as a national park in 2019. President Woodrow Wilson made the designation in 1919. But Teddy Roosevelt is credited for preserving the natural wonder as a game reserve and a national monument. (AP Photo/Jeff Robbins, File)

FILE - In this Oct. 5, 2013 file photo, the Grand Canyon National Park is covered in the morning sunlight as seen from a helicopter near Tusayan, Ariz. The Grand Canyon is celebrating 100 years as a national park in 2019. President Woodrow Wilson made the designation in 1919. But Teddy Roosevelt is credited for preserving the natural wonder as a game reserve and a national monument. (AP Photo/Julie Jacobson, File)

FILE - In this Aug. 2, 2015, file photo, tourists Joseph Lin, Ning Chao, center, and Linda Wang, left, pose for a selfie along the south rim at Grand Canyon National Park, Ariz. The Grand Canyon is celebrating 100 years as a national park in 2019. President Woodrow Wilson made the designation in 1919. But Teddy Roosevelt is credited for preserving the natural wonder as a game reserve and a national monument. (Emery Cowan/Arizona Daily Sun via AP, File)

FLAGSTAFF, Ariz. — The first European American who reached the Colorado River in the Grand Canyon marveled at what was before him: an astounding system of canyons, profound fissures and slender spires that seemingly tottered from their bases.