Remembering Women who Saved and Shared the Outdoors

Meet the women behind some of your favorite outdoor spots

Susan Thew. Marge Sill. Minerva Hoyt. You might not know these names at first, but if you’re an outdoor enthusiast in the region, it’s time to get acquainted.

Women’s History Month makes for a good excuse to reflect upon female outdoor achievements. So, let us take you through a guided nature tour of some of the area’s most influential women conservationists.


In Yosemite, Clare Marie Hodges became the National Park Service’s first female ranger, Lynn Hill made the first free ascent of The Nose of El Capitan, and Heather “Anish” Anderson hiked through to a Pacific Crest Trail speed record. Yet none of them would have had such opportunities without the efforts of another remarkable woman: Jessie Benton Frémont (1824-1902).

Before national parks even existed, Frémont mobilized influential people behind a then-radical cause: preserving Yosemite for the nation’s future. “This lovely valley is rimmed about by ranges of mountains rising from green foothills to the dark Sierra, snowcrowned,” she wrote. “So few people have seen the grand scenery of the Yo Semite that it needs a little explaining.” Frémont convinced politicians, writers and naturalists to join her effort, and then traveled to Washington in 1864 armed with Yosemite’s first photos. Thanks in no small part to Frémont, President Lincoln signed the Yosemite Grant, the first such land preserve in the nation’s history.

Men who supported Frémont’s Yosemite fight have mountains named in their honor. No such geography bears the name of Frémont, an author and abolitionist, though her modern-day admirers have tried to change that, and California Outdoors Hall of Fame inducted her last year.

“If not for what she did behind the scene, during an age when women did not have the vote or any voice in public life, would there be a Yosemite National Park today?” asked historian Craig MacDonald. Conservationist and Yosemite’s first official guardian, Galen Clark says no. “Yosemite would not have been saved if it hadn’t been for the efforts of Jessie.”

Susan Thew persuaded Congress to protect the High Sierra of,Sequoia National Park – image: courtesy of Matt Johanson

Anyone who’s hiked in the High Sierra or climbed Mount Whitney should thank Susan Thew. She journeyed hundreds of miles through these mountains, producing a 68-page book which she submitted to Congress in 1926. Lawmakers had rejected several earlier proposals, but Thew’s photography coaxed them to extend Sequoia National Park’s boundary to the Sierra crest.

“I know of no better place than the wild loveliness of some chosen spot in the High Sierra,” Thew wrote.


Marge Sill of Reno, known as the “mother of Nevada wilderness,” committed more than 50 years to protecting the outdoors. A founder of Friends of Nevada Wilderness and a Sierra Club leader, Sill promoted the Wilderness Act of 1964 and helped designate wilderness at Mt. Rose, Mt. Charleston and the Ruby Mountains.

Lisa Maloff, the “Angel of Tahoe,” supported parks and wildlife care as she donated more than $40 million to countless causes and charities in the Lake Tahoe area. She died in 2022 at age 93. “Her presence and spirit will continue to be felt every day,” said South Lake Tahoe Mayor Devin Middlebrook.

Descended from Eastern Sierra Paiutes and Tule River Yokuts, Jolia Varela founded the nonprofit group Indigenous Women Hike. She led a group of mostly Paiute (they also call themselves Nüümü) women on a trek through their High Sierra ancestral lands in 2018; the group plans an encore hike this summer. “It’s time to get our community out and nourish the connections that we have to the land to make us healthier,” Varela said.


Following a long career in social justice causes, Lupe Anguiano led a successful effort to prevent construction of a liquified natural gas terminal off the coast of Ventura County. Anguiano founded an environmental group called Stewards of the Earth in Oxnard, volunteered for the California Coastal Protection Network, and campaigned against air pollution, fracking and pesticides. She won honors from the California Assembly, National Women’s History Project and Women’s Economic Ventures, and is still going strong in her 90s.

Minereva Hoyt, pictured in a Joshua Tree National Park mural, championed the California desert – image: courtesy of Matt Johanson

Though she hailed from Mississippi, Minerva Hoyt loved camping in the desert. “During nights in the open, lying in a snug sleeping-bag, I soon learned the charm of a Joshua Forest,” she wrote. “This desert possessed me, and I constantly wished that I might find some way to preserve its natural beauty.” Hoyt campaigned tirelessly to preserve California’s deserts, convincing President Franklin Roosevelt to create Joshua Tree National Monument in 1936. A half century later, Senator Dianne Feinstein convinced Congress to make it a national park and enlarge it. Mexican President Pascual Rubio named Hoyt “the Apostle of the Cacti.” The U.S. government honored her as well, naming Mount Minerva Hoyt after her.


Born in 1910, Sada Sutcliffe Coe Robinson grew up on her father’s ranch in Santa Clara County’s foothills. “The world I grew to know was the mountains and ranges!” she wrote. “Wilderness and long-horned cattle! My cradle was my father’s strong arms and a blanket across the front of his saddle.” After her father died in 1943, Robinson donated the 12,000-acre ranch for a park honoring his memory. Henry W. Coe State Park formed in 1958 and since then has grown to 87,000 acres, the largest state park in Northern California. “May these quiet hills bring peace to the souls of those who are seeking,” she expressed.

To encourage more Black people to enjoy outdoor activities, Rue Mapp of Oakland created Outdoor Afro in 2009. The group has grown quickly with more than 100 volunteer leaders in 60 cities and some 60,000 participants. Mapp authored the book, “Nature Swagger: Stories and Visions of Black Joy in the Outdoors,” which released last year. “Being outdoors is about people getting out and finding that healing for themselves,” Mapp said. In Nevada, Toyya Mahoney became a group leader and began leading hikes in 2016.


If you spend time outdoors during Women’s History Month (and you really should), take a moment to consider the women who improved your experience.

“Nature has been for me, for as long as I remember, a source of solace, inspiration, adventure, and delight; a home, a teacher, a companion,” wrote author Lorraine Anderson.

“My mom and my dad taught me the greatest gifts we have are our family, our health and the right to clean water and good land,” said environmental activist Erin Brockovich.

“Let us be the ancestors our descendants will thank,” said conservationist Winona LaDuke.

Matt Johanson enjoys exploring and writing about the outdoors. Climbing Mount Shasta, hiking the John Muir Trail, and skiing through Yosemite’s high country rank among his favorite outings. Matt’s books include California Summits, Sierra Summits, Yosemite Adventures, and Yosemite Epics. He’s taught and advised an award-winning high school journalism program for more than 20 years.

Founded in 2020, the Sierra Nevada Ally is a self-reliant 501c3 nonprofit publication with no paywall, a member of the Institute for Nonprofit News, offering unique, differentiated reporting, factual news, civics information, and explanatory journalism on the environment, conservation, and public policy, while giving voice to writers, filmmakers, visual artists, and performers. We rely on the generosity of our readers and aligned partners.


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