• Giant Sequoia Trees

    Sequoia & Kings Canyon

    National Parks California

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  • Parks Institute Stage 1 Fire Restrictions June 1, 2013

    Due to high fire danger, Sequoia & Kings Canyon National Parks are instituting fire restrictions inside the parks. More »

  • Road Construction Delays (if Entering/Exiting Hwy. 198)

    Expect minimal construction delays on main road through parks (Generals Hwy) through June 2013 on weekdays generally from 7 a.m.-6 p.m. See link for schedule. Call for 24-hour road conditions info: 559-565-3341 (press 1, 1, 1). More »

  • Vehicle Length Limits Have Changed in Sequoia NP (if Entering/Exiting Hwy 198)

    Planning to see the "Big Trees" in Sequoia National Park? If you enter/exit via Hwy. 198, please pay close attention to new vehicle length advisories for your safety and the safety of others. More »

  • Some Opening/Closing Dates for Services and Facilities May Change – Check Back for Updates

    Some opening/closing dates for facilities and visitor services in the parks may change due to weather or other circumstances. Call 559-565-3341 or send us an email using the "Contact Us" link below the main menu (bottom left, this page).

  • You May Have Trouble Calling Us. Use the "Contact Us" Link (Bottom Left) to Send an E-mail.

    We are experiencing technical problems receiving some incoming phone calls at the parks. We apologize for the inconvenience. Please keep trying to reach us or check this website for frequently-asked questions. The search box (top, right) may be helpful.

Air Quality -- Visibility

Park views are often obscured, most frequently in the summer. Contributions of air pollutants from vehicle emissions, agricultural activities, prescribed and wildland fire, and other sources of fine particles limit the visitor experience in these parks.

A good way to learn more about air quality problems in our national parks is to view the network of National Park Service webcams. The website also provides a wealth of data on air quality over time.

Go to the Giant Forest Webcam page > > >
 
Two views of the valley below the parks, one with a thick gray blanket of pollution hiding the foothills, the other with clear air showing several ranges of foothills
Bad visibility from the western edge of Giant Forest in Sequoia National Park, looking west toward the San Joaquin Valley and the Coast Range. To the right is the same view on a day with good air quality.
NPS Photos

Did You Know?

Fairy lantern wildflowers.

The unusual diversity of climates and ecosystems in Sequoia and Kings Canyon National Parks led to its designation as an International Biosphere Reserve. There are 580 reserves in 114 countries that hold this honor world-wide.