Wanderlust World Wanderlust World When comparing the sheer scale of America's iconic national parks, Yellowstone and Yosemite often come to mind. While both are vast, protected wilderness areas, there is a clear winner in terms of total acreage.
Established on March 1, 1872, as the world's first national park, Yellowstone spans an impressive 898,317 acres (3,630 km²). Its territory stretches across three states: Wyoming, Montana, and Idaho. This massive landscape encompasses geothermal features like Old Faithful, the Grand Canyon of the Yellowstone, and vast forests and lakes.
Yosemite, designated a national park on October 1, 1890, covers 748,436 acres (3,029 km²) entirely within California. Famous for its towering granite cliffs—El Capitan and Half Dome—and spectacular waterfalls, Yosemite is a UNESCO World Heritage site renowned for its glacial geology.
Yellowstone is larger than Yosemite by approximately 149,881 acres (606 km²). To put that difference in perspective, the gap is roughly the size of the entire Zion National Park in Utah. While Yosemite packs dramatic vertical relief into a smaller footprint, Yellowstone's sprawling plateau offers a greater expanse of contiguous wilderness.