In 1905, William Kent bought 611 acres of California redwoods; he later donated 298 acres, helping protect the forest and create Muir Woods National Monument

A reservoir nearly destroyed one of Northern California's old-growth redwood forests before it became a national monument. What stopped it was an unexpected action: a private landowner gave a large part of his own land to the federal government instead of allowing a water company to flood the area. According to the National Park Service's history of Muir Woods, the landowner was William Kent, a Chicago businessman. Along with his wife, Elizabeth Thacher Kent, he had purchased 611 acres of redwood forest in Marin County, California, in 1905. Three years later, that purchase played a direct role in creating Muir Woods National Monument. This was not a wealthy family buying land for recreation; it was a conservation decision. It was a choice made twice: to buy the forest, then to give most of it away.

Who was William Kent, and why did he care about this forest?

William Kent grew up in Marin County; his father moved the family there after the Great Chicago Fire of 1871, according to the National Park Service's biography of Kent. He came back to the area in 1903, which the same NPS biography attributes to an economic downturn that had hit the family's fortune. During that visit, a friend showed him a forest known as Redwood Canyon. He was urged to buy it before logging companies could.


By the early 1900s, commercial logging had already changed much of Marin County. The building boom in San Francisco during the Gold Rush had created demand for lumber, and redwood groves were easy targets. Conservationists and local hiking groups worried Redwood Canyon would be next, so they reached out to Kent, also an outdoorsman, and asked him to act before it was too late. He and Elizabeth decided to help. In 1905, they bought all 611 acres of the canyon. Kent later said they paid the purchase price not for profit but to protect the land from exploitation, as the National Park Service reported.

The reservoir plan that almost erased the forest

Buying the land did not solve the problem for long. In 1907, the North Coast Water Company proposed building a reservoir in Redwood Canyon, filing condemnation proceedings to seize the land under eminent domain. That plan would have flooded part of the forest that Kent had purchased to protect. Rather than going through a long legal battle, Kent donated part of his own land (accounts vary on the exact figure, with some putting it at 298 acres and others, including the acreage named in Roosevelt's actual proclamation, at 295 acres) to the federal government. Federal land couldn't be seized by a water utility's condemnation proceedings the way private land could, so the donation itself removed the threat. Congress had passed the Antiquities Act in 1906. That law allowed the president to declare monuments by proclamation without needing a new law from Congress. Using this power, President Theodore Roosevelt accepted Kent's donated land. On January 9, 1908, according to the National Park Service, Roosevelt signed the proclamation creating Muir Woods National Monument.

Why Kent gave away land instead of naming it after himself

When Roosevelt suggested naming the monument after Kent, Kent turned the offer down. Kent asked instead that the forest be named for conservationist John Muir, saying his own sons would keep the Kent name alive without a park sign. Muir wrote back to thank Kent, calling it "the best tree-lover's monument that could be found in all the forests in the world." That is why the site carries Muir's name today rather than Kent's.

A legacy that is not simple

Kent went on to serve in Congress, where he helped create the legislation that established the National Park Service in 1916. His time in office also included supporting immigration laws that restricted Asian immigrants from entering the country, owning land, and becoming citizens, according to the National Park Service's biography of Kent. The agency includes this part of his history in its records along with his work on conservation. Elizabeth Thacher Kent had her separate record in public life. She was involved in the National American Woman's Suffrage Association, supporting women's voting rights in the years after the Muir Woods donation.

Why this still matters for a visit today

Muir Woods National Monument protects one of the remaining old-growth coast redwood forests near a major U.S. city, and it draws steady weekend crowds from the Bay Area. According to National Park Service guidance for the monument, visitors are generally advised to reserve parking or a shuttle in advance. These are the same redwoods that stood there in 1907, when a reservoir plan threatened to flood the forest and Kent's donation stopped it. The Muir Woods story reminds us that the history of protecting nature is not usually simple. A piece of land bought in 1905, a gift in 1907, and a stopped dam project all played a role in making a monument, one that today still holds a forest more than a century old.