Yellowstone Becomes First National Park
Explorers and scientists, including the 1871 Hayden Geological Survey, documented Yellowstone's unique geysers, hot springs, and wildlife in detailed reports with photographs and paintings. These findings persuaded Congress to protect the area from private exploitation. On March 1, 1872, President Ulysses S. Grant signed the Yellowstone National Park Protection Act, dedicating over two million acres as a public park for the benefit and enjoyment of the people. The legislation withdrew the land from settlement and sale. It established federal oversight, though enforcement remained limited initially.
