Road Construction Delays on Park Roads for 2014 Season
Expect occasional 15-minute to 1-hour delays in Sequoia and Kings Canyon National Parks on weekdays only (times vary), including delays to/from the General Sherman Tree, Crystal Cave, and Grant Grove. 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, and your vehicle is longer than 22 feet (combined length), please pay close attention to vehicle length advisories for your safety and the safety of others. 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 »
Air Quality -- Acidic Deposition
High-elevation lakes and streams in the parks are potentially sensitive to human-induced acid deposition (acidic rain, snow, and particles). While chronic acidification is not a problem at present, there are episodes when the capacity of our lakes and streams to neutralize acids gets reduced -- during snowmelt and during the "dirty" rainstorms of summer and early fall -- and the water becomes acidic for a time. If acid deposition increases in the future, a likely scenario given the tremendous population growth in the San Joaquin Valley, these episodes of acidification will become more frequent and can be expected to alter our aquatic ecosystems.
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...