5 Most Visited US National Parks

4. Yellowstone National Park

Number of Visitors: 4,501,382

Yellowstone National Park spreads across 2,221,766 acres and is situated near a volcanic hot spot. While the majority of the park is in Wyoming, some parts extend into Montana and Idaho. Yellowstone features deep canyons, rivers, forests, hot springs, and geysers. It is home to hundreds of animal species, including bears, wolves, bison, elk, and antelope. Yellowstone National Park is at the fourth position on our list of the most visited US national parks.