Sequoia National Park is home to giant redwoods _ and the worst air quality in …
SEQUOIA NATIONAL PARK, Calif. — On a clear day, the view from Beetle Rock in Sequoia National Park extends west for 105 miles across the patchwork of crops in California's agricultural heartland to the Coast Mountains and the Pacific Ocean beyond.
Sequoia National Park: California Smog Threatens World's Oldest Trees
smog threatens trees at Sequoia National Park
List of US national parks with highest smog levels