The Generals Highway "Road Between the Parks" is OPEN
The section of road between Lodgepole (Sequoia) and Grant Grove (Kings Canyon) is open. Call 559-565-3341 (press 1, 1) for 24-hour road updates.
Be Prepared! Tire Chains or Cables May Be Required in the Parks at Any Time
All vehicles must carry chains or cables when entering a chain-restricted area. It's the law (CA Vehicle Code, Section 605, Sections 27450-27503). Road conditions may change often. For road conditions, call 559-565-3341 (press 1, 1). More »
You May Have Trouble Calling Us
We are experiencing technical problems receiving incoming phone calls. We apologize for the inconvenience. Please send us an email to SEKI_Interpretation@nps.gov or check the "More" link for trip-planning information. More »
Vehicle Length Limits in Sequoia National Park (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 vehicle length advisories for your safety and the safety of others. More »
Air Quality -- Airborne Synthetic Chemicals
Sequoia and Kings Canyon National Parks are downwind of one of the most productive agricultural areas in the world, the San Joaquin Valley. Every year, tons of pesticides are applied to these crops - in the counties adjacent to Sequoia and Kings Canyon National Parks (Fresno, Tulare, Kern, and Kings), over 37,000 tons in 2010 alone. Pesticides that become volatilized - suspended in the atmosphere as particulates - drift into the Parks on prevailing winds. Consequently, organophosphates from fertilizer are found in precipitation as high as 6,300 ft. (1,920 meters) in Sequoia National Park. Other synthetic chemicals, such as PCBs (polychlorinated biphenyls) are also finding their way into the parks. PCBs are found as in a variety of industrial and consumer products such as cooling compounds, electronics, paints, varnishes, plastics, inks and pesticides. Some PCBs have negative effects on animals by imitating specific hormones in concentrations as small as parts per trillion. They can cause changes in wildlife reproductive capacity, longevity, intelligence, and behavior, or can lead to cancer or mutations. They are inconspicuous, but potentially dangerous.
While studies have not yet been conducted to establish cause-and-effect links between synthetic chemical drift into the parks and effects on park ecosystems, circumstantial evidence suggests that impacts to park wildlife may be occurring.
For example, the peregrine falcons that nest at Moro Rock in Sequoia National Park have never been able to produce offspring, with the exception of one confirmed sighting of a fledging peregrine falcon born in 2008. Abandoned eggs contained high quantities (13 mg/kg wet weight) of DDE (the breakdown product of the US-banned pesticide DDT), and eggshells averaged 15% thinner than they should be. More recently, the peregrines produced eggs that lacked the normal smooth waxy brown-spotted shell; instead the shells were white and chalky. In 2011 and 2012, juvenile peregrine falcons were seen in the Moro Rock area but without confirmation that they had been born here.
For more information, visit the California Department of Pesticide Regulation web site.
Did You Know?
The road to Cedar Grove is closed from November to April because of rockfall, not snow. Erosion can bring rocks tumbling at any time of year, but the threat is greatest in winter. This is when the freeze-thaw action in the rocks tend to start rockslides. More...