This year marks a milestone for one of America’s most iconic landscapes—Sequoia National Park is celebrating its 135th anniversary. Established on September 25, 1890, it became the nation’s second-oldest national park created to protect the awe-inspiring giant sequoia trees that tower over the Sierra Nevada. For more than a century, the park has welcomed generations of visitors to marvel at its ancient forests, rugged mountains, and pristine wilderness, standing as both a natural wonder and a testament to the enduring importance of conservation.

Early roots
The park’s establishment marked a significant conservation milestone
Most people know Yellowstone was the first national park. Ask what the second was and you may get shrugs but it was Sequoia National Park and it celebrated its 135th year on September 25, 2025.
The story of Sequoia National Park began long before its official designation in 1890. In the mid-19th century, Euro-American settlers and explorers entering the Sierra Nevada encountered the awe-inspiring giant sequoias—trees that had stood for thousands of years. Logging interests soon targeted these massive trees with several groves cut down in the 1870s and 1880s despite their little commercial value; the wood often shattered upon impact.
At the same time, writers, naturalists, and conservation advocates such as John Muir raised public awareness of the need to protect these natural wonders. Their efforts combined with mounting public concern helped push Congress to establish Sequoia National Park on September 25, 1890. This act marked one of the earliest victories of the conservation movement and ensured that the majestic sequoia groves would be preserved for generations to come.
Here’s a look at the trees it was named for—the largest on the planet—and how the national park system has grown.

A real-life Jurassic park
Stepping back in time
Step into Sequoia National Park and you’re stepping into a living remnant of the Jurassic world. The towering giant sequoias some over 3,000 years old belong to a tree lineage that first appeared during the age of dinosaurs more than 200 million years ago. These “living fossils” have survived dramatic climate shifts, ice ages, and countless wildfires standing today as silent witnesses to Earth’s deep history.
While you won’t find dinosaurs roaming the Giant Forest the sheer scale and primeval atmosphere of the groves make it easy to imagine a Jurassic landscape—one where the trees themselves are the ancient giants.
The last giant sequoias are in about 73 groves scattered over 48,000 acres along the western slopes of the Sierra Nevada. The northernmost sequoias grow in Tahoe National Forest and the southernmost groves are in Sequoia National Forest northeast of Bakersfield.
Giant sequoias live a very long time and grow quickly. They require a lot of water which is mostly from the Sierra snowpack that soaks into the ground.

Fire: From fear to understanding
Sequoias depend on fires to survive and regenerate
As Sequoia National Park celebrates its 135th anniversary one of the biggest lessons in its history is the role of fire. In the park’s early decades, fire was seen strictly as a destructive force to be eliminated at all costs. Aggressive suppression policies throughout the 20th century, however, led to overcrowded forests and thicker undergrowth setting the stage for larger, hotter, and more damaging wildfires.
Over time, science revealed that giant sequoias actually depend on fire for their survival. Heat opens their cones, releasing seeds while flames clear competing vegetation and recycle nutrients back into the soil. Recognizing this the National Park Service shifted strategies—embracing prescribed burns and allowing natural fires to play their ecological role when conditions are safe.
This evolution in fire management highlights the park’s growing wisdom: protecting a living landscape sometimes means letting nature take its course. Just as the park has stood the test of 135 years, its giant sequoias endure thanks in part to the very flames once thought to threaten them.

The giants’ heavy load
The heaviest living organisms on Earth
Giant sequoias are some of the largest living organisms on Earth carrying truly impressive mass. The General Sherman Tree the largest tree by volume weighs an estimated over 2.7 million pounds Even their branches are massive—some weighing several tons supporting dense clusters of needles and cones.
Despite this incredible load their sturdy, tapering trunks and extensive root systems keep them upright for thousands of years. This remarkable combination of height, girth, and weight makes every walk among the sequoias a humbling encounter with nature’s engineering at its grandest scale.
The threat of logging
Logging posed a significant threat to giant sequoia groves historically
In 1892, the Kings River Lumber Co. began logging the Converse Basin, home to giant sequoias with trunk diameters of 15 to 20 feet. The wood was sent down the 54-mile Sanger flume to get to a railroad. The wood of sequoias is considered brittle and few logs made it to the mill. Logging stopped in the 1920s.

Big growth
Sequoias grow impressively fast compared to many other trees
Giant sequoias are true champions of growth combining incredible height, girth, and longevity. They can grow over 250 feet tall and reach diameters of 30 feet or more at the base. Remarkably, these trees continue to grow slowly but steadily even after reaching centuries of age.
Their thick, fibrous bark protects them from pests, disease, and fire allowing them to live for 2,000 to 3,000 years. This impressive growth is fueled by deep roots, abundant rainfall in the Sierra Nevada, and centuries of adaptation to their environment. Every new branch, cone, and ring of growth is a testament to the giants’ resilience and the enduring legacy of Sequoia National Park.
Rooting them on
Unique and fascinating root system
Beneath their massive trunks, giant sequoias have surprisingly shallow root systems often stretching only 6 to 12 feet deep. Instead of going down, the roots spread wide—extending up to 200 feet outward—and interlock with the roots of neighboring sequoias. This web of support anchors the trees against storms, snow, and time itself.
It’s a fitting metaphor: just as the sequoias lean on one another for strength, generations of visitors and conservationists have “rooted them on” working to protect and preserve these giants. From the earliest advocates who fought logging to modern scientists battling climate threats and wildfires, people continue to stand alongside the trees—ensuring they remain rooted in the Sierra Nevada for centuries to come.

Tiny beginnings
Tiny, grass-like seeds
Giant sequoia seeds are surprisingly tiny measuring only about 1/4 inch long—roughly the size of a poppy seed. Each sequoia cone can contain 200–400 seeds but only a small fraction ever germinate successfully. The seeds are winged which allows them to be carried short distances by the wind.
Successful germination depends on very specific conditions: the forest floor must be sunlit and free of thick undergrowth and the soil must retain moisture while being well-drained. Interestingly, fire plays a crucial role in this process. Low-intensity fires clear away competing vegetation, open cones, and create nutrient-rich ash beds providing the perfect environment for seeds to sprout.
Once germinated, seedlings grow slowly at first often taking decades to reach a substantial size. But over centuries, these tiny beginnings become towering giants—some of the largest and oldest living things on Earth capable of living 2,000–3,000 years.
Fun fact: The giant sequoia begins with tiny seeds: 91,000 make up a pound.
The largest giant sequoias by trunk volume in cubic feet:
- General Sherman: 52,508
- General Grant: 46,608
- President: 45,148
- Lincoln: 44,471
- Stagg: 42,557

Historic timeline
First national park established specifically to protect a living organism
- 1870s–1880s: Growing awareness of logging threats to giant sequoias sparks conservation efforts.
- September 25, 1890: Sequoia National Park is established, becoming the second-oldest national park in the U.S. (after Yellowstone).
- 1890: Just a week later, General Grant National Park (now part of Kings Canyon) is created nearby.
- 1926: The National Park Service assumes full management improving protection and access.
- 1940: Kings Canyon National Park is created eventually administered jointly with Sequoia.
- 1976: Sequoia & Kings Canyon are designated as part of the UNESCO Biosphere Reserve.
- 1980s–1990s: Expansion of wilderness areas strengthens ecological protection.
- 2000: The two parks are jointly managed as the Sequoia and Kings Canyon National Parks (SEKI).
- 2021: The KNP Complex Fire severely impacts giant sequoia groves, prompting new conservation and recovery efforts.
- 2025: Sequoia National Park celebrates its 135th anniversary.
The park
Over 400,000 acres of forested terrain
Sequoia National Park has 52 developed campgrounds, hiking on more than 1,147 miles of trails including 47 miles of the Pacific Crest Trail, over 314,448 acres of wilderness, 222 miles of wild and scenic rivers, world-class whitewater rapids, 158 ponds and lakes, boating, fishing, biking and horseback riding.
The tallest peak in the contiguous U.S. is in the park, Mount Whitney at 14,505 feet.
There is little cellphone reception in the park.
As Sequoia National Park celebrates 135 years, it stands as a testament to the resilience and majesty of nature. From tiny seeds that sprout in sunlit, fire-cleared soil to towering giants carrying immense weight and living for millennia, these trees embody both patience and strength.
The park has weathered threats—from early logging to catastrophic fires—and learned to embrace fire as a vital part of the ecosystem. Visitors today walk among ancient sequoias that link us to the Jurassic era, reminding us of the deep history rooted in every trunk, branch, and seed. Over more than a century, generations of conservationists and nature lovers have “rooted them on,” ensuring these living monuments continue to inspire awe and wonder for centuries to come.
Related stories
- Sequoia National Park: A First Timer’s Guide
- The Complete Guide to Sequoia and Kings Canyon National Parks
- The Ultimate Guide to Sequoia and Kings Canyon National Parks

National parks timeline
Key milestones in the history of U. S. National Parks
Here’s a timeline of major milestones in the history of U.S. national parks—from the earliest preservation efforts to the system we know today:
1800s: Early conservation efforts
- 1832: Artist George Catlin calls for preserving America’s wilderness for future generations.
- 1864: President Abraham Lincoln signs the Yosemite Grant Act, giving Yosemite Valley and Mariposa Grove to California for preservation—considered the first federal act to protect scenic lands.
- 1872: Yellowstone National Park is established by President Ulysses S. Grant—the first national park in the world.
- 1890: Sequoia and Yosemite National Parks are created (Yosemite transferred back from state to federal management).
- 1899: Mount Rainier National Park established.
Early 1900s: Expansion of the idea
- 1906: Antiquities Act signed by President Theodore Roosevelt allowing presidents to designate national monuments.
- 1906: Roosevelt proclaims Devils Tower, Wyoming as the first national monument.
- 1910: Glacier National Park created.
- 1916: The National Park Service (NPS) is established by the Organic Act, signed by President Woodrow Wilson, to manage parks and monuments.
1920s–1940s: Growing the system
- 1920s–30s: Dozens of historic sites, battlefields, and monuments added to the system.
- 1933: President Franklin D. Roosevelt consolidates national parks, monuments, and historic sites under the National Park Service.
- 1944: Big Bend National Park established in Texas.
1950s–1970s: Preservation movement
- 1956: The Mission 66 program launches, improving visitor services and infrastructure ahead of NPS’s 50th anniversary.
- 1964: The Wilderness Act passes protecting millions of acres within national parks.
- 1966: The National Historic Preservation Act expands NPS’s role in safeguarding cultural heritage.
- 1971: Alaska Native Claims Settlement Act sets the stage for vast park expansions.
- 1978: President Jimmy Carter designates 17 national monuments in Alaska adding 56 million acres to protection.

1980s–1990s: Modern protection
- 1980: The Alaska National Interest Lands Conservation Act (ANILCA) creates or enlarges many Alaska parks doubling NPS lands.
- 1994: Death Valley and Joshua Tree are upgraded from national monuments to national parks.
2000s–Today: Continued growth
- 2019: Indiana Dunes and Gateway Arch become national parks.
- 2020: White Sands National Park established in New Mexico.
- 2022: New River Gorge National Park and Preserve (West Virginia) officially redesignated.
Today, the National Park System includes over 400 sites (national parks, monuments, historic sites, preserves, seashores, and more) with 63 official “national parks” carrying the title.
Please note: This article was first published October 2025. Articles apply to the date they were written. Please refer to current information for quickly changing subjects.
Worth Pondering…
The sequoias belong to the silences of the millenniums. Many of them have seen a hundred human generations rise, give off their little clamors and perish. They seem indeed to be forms of immortality standing here among the transitory shapes of time.
—Edwin Markham, American poet of the 19th and 20th centuries






























































































