How many national parks does the pacific crest trail pass through?

The Pacific Crest Trail passes through seven national parks. These include Channel Islands National Park, Los Padres National Forest, Sequoia National Park, Kings Canyon National Park, Yosemite National Park, Lassen Volcanic National Park, and Mount Rainier National Park. This scenic trail stretches over 2,650 miles from the Mexican border to the Canadian border, showcasing diverse landscapes and ecosystems.