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 »
Impact of Development
Impacts from nearly 100 years of development supporting overnight accommodations in Giant Forest threatened the giant sequoia ecosystem that the National Park Service was charged to protect for future generations. To construct roads and parking lots, sequoia roots had been pruned, small portions of wetland and riparian areas had been filled over, and drainage patterns had been changed. Outdated utility systems leaked effluent into meadows and streams. Trampling and automobile use had compacted, eroded, and degraded soils, and pavement remained in abandoned campgrounds - all preventing germination and establishment of grasses, wildflowers, shrubs, and tree seedlings.
Did You Know?
The Sierra Nevada is still growing today. The mountains gain height during earthquakes on the east side of the range. But the mountains are being shortened by erosion almost as quickly as they grow. This erosion has deposited sediments thousands of feet thick on the floor of the San Joaquin Valley.