National Parks Born: Yosemite and Yellowstone Protected

Half Dome and the giant sequoias had survived millennia of geological upheaval, but they nearly fell to sawmills and sheep. On October 1, 1890, the United States Congress established Yosemite National Park, placing over 1,500 square miles of California's Sierra Nevada under federal protection just eighteen years after creating the world's first national park at Yellowstone. The campaign to protect Yosemite traced back to 1864, when Abraham Lincoln signed a grant deeding Yosemite Valley and the Mariposa Grove to California for public use — the first time any government set aside wild land purely for preservation. But state management proved disastrous. Livestock grazed meadows to dust, loggers felled ancient trees, and tourism operators carved roads without regard for the landscape. By the 1880s, naturalist John Muir was publishing furious dispatches describing the destruction, calling the valley floor "a devastated sheep camp." Muir's articles in Century Magazine caught the attention of editor Robert Underwood Johnson, and together they launched a lobbying effort that reached Congress. Their argument was both aesthetic and scientific: Yosemite's granite walls, waterfalls, and ecosystems represented irreplaceable natural heritage that no private interest should be permitted to exploit. The bill moved quickly through both chambers, and President Benjamin Harrison signed it into law. The park's creation built directly on the Yellowstone precedent of 1872, when Congress had designated two million acres of Wyoming Territory as a public park — a concept so novel it had no legal framework. Yellowstone's early years were plagued by poaching, vandalism, and underfunding until the Army was called in to patrol its boundaries. Lessons from Yellowstone's rocky start informed how Yosemite would be managed. Together, these two parks established the principle that wild landscapes belong to the public, not to the highest bidder. That idea eventually produced the National Park Service in 1916 and a system that now protects over 85 million acres.