01/12/2026
On This Day: January 11, 1908 — Roosevelt Protects the Grand Canyon
On this day in 1908, President Theodore Roosevelt used the power of the Antiquities Act to declare the Grand Canyon a national monument—protecting over 800,000 acres from mining, development, and private exploitation.
Though not yet a national park (that would come in 1919), Roosevelt’s bold action ensured one of the most awe-inspiring landscapes in North America would be preserved for future generations.
🌄 He had visited the canyon in 1903 and stood at the South Rim in wonder. His words from that trip endure as some of the most iconic in American conservation history:
“Leave it as it is. You cannot improve on it. The ages have been at work on it, and man can only mar it.”
— Theodore Roosevelt, Grand Canyon, May 6, 1903
Roosevelt’s designation of the Grand Canyon was part of a much larger vision. During his presidency, he protected over 230 million acres of public land, established 5 national parks, 18 national monuments, and 150 national forests. He transformed conservation into a core presidential priority.
His visit to the canyon, and the words he left behind, reflected both awe and urgency: this was not just scenery — it was a national inheritance, and it needed a fierce protector.
Today, the Grand Canyon is one of the most visited natural wonders in the world, and its protection stands as a towering legacy of Roosevelt’s belief that “the nation behaves well if it treats its natural resources as assets…”
