Six Grandfathers to Four Presidents: The Real Story Behind Mount Rushmore

Long before it carried four presidential faces, the mountain now known as Mount Rushmore had a name of its own. The Lakota people called it Tunkasila Sakpe, the Six Grandfathers, sacred ground tied to their understanding of the six directions of creation. That older name rarely makes it into the postcards, but it's the honest starting point for the mountain's full story.

On This Day

On this day in 1788, Virginia became the tenth state to ratify the U.S. Constitution, pushing the new government well past the threshold it needed to take effect nationwide.

How a New York Lawyer Gave the Mountain a New Name

In 1885, a New York attorney named Charles E. Rushmore was in the Black Hills surveying tin mining claims when he asked his guide what the unnamed peak in front of them was called. According to the story, the guide replied that it had never had one, and decided right there to name it Rushmore. The U.S. Board on Geographic Names officially adopted that name in 1930, just as construction on the monument was already underway.

Fourteen Years, Four Hundred Workers, Zero Deaths

Construction began on October 4, 1927, under sculptor Gutzon Borglum, the son of Danish immigrants. Working with dynamite, jackhammers, and chisels, around 400 men, most of them former miners, removed roughly 450,000 tons of granite from the mountainside over fourteen years. Remarkably, given the dangerous nature of the work, hanging from harnesses on a sheer granite face, not a single worker died during the entire construction. Washington's head was dedicated in 1930, Jefferson's in 1936 (after being relocated due to unstable rock), Lincoln's in 1937, and Roosevelt's in 1939. Borglum died in March 1941 before the project was fully realized, and Congress shut down funding for further work that October, declaring the monument complete as-is.

The Presidents Borglum Almost Chose Differently

The original idea, pitched by South Dakota historian Doane Robinson in 1923, wasn't presidents at all. Robinson wanted to carve western figures like Lakota leader Red Cloud, explorers Lewis and Clark, and Buffalo Bill Cody into the nearby Needles rock formations, purely to draw tourists to the state. Borglum rejected that site for its unstable rock and reimagined the entire project around four presidents, each representing a different era: Washington for the nation's founding, Jefferson for its westward expansion, Lincoln for its preservation through civil war, and Roosevelt for its emergence as a world power. First Lady Eleanor Roosevelt later pushed for a fifth face, women's suffrage leader Susan B. Anthony, but funding and the onset of World War II ended any further additions.

A Complicated Legacy Worth Stating Plainly

The mountain sits on land that was part of the Black Hills, territory guaranteed to the Lakota by the 1868 Fort Laramie Treaty before being seized by the federal government after gold was discovered there in the 1870s. Honoring the monument's engineering achievement and its presidents doesn't require ignoring that history. The full, honest version of Mount Rushmore includes both the achievement and the land dispute that continues, in various forms, to this day.

A Hidden Vault Behind Lincoln's Head

Borglum originally planned a Hall of Records carved into the mountain behind Lincoln's head, intended to store copies of America's founding documents for future generations. Funding ran out before it could be finished as designed, but in 1998 the National Park Service installed a titanium vault holding 16 porcelain panels with historical text, sealed inside the unfinished chamber, where it remains today, not open to public visitors.

RV Families in the Black Hills

The Black Hills draw RV travelers from across the country every summer, not just for Mount Rushmore but for Custer State Park, the Needles Highway, and nearby Crazy Horse Memorial, an even larger mountain carving honoring Native American heritage that's been under construction since 1948 and still isn't finished. RV parks throughout the region vary widely in signal quality, since the same mountainous terrain that makes the Black Hills beautiful also blocks cellular signal unevenly from one campground to the next.

A Question Worth Asking on the Road

Ask a voice assistant who's on Mount Rushmore and you'll get the four presidents by name almost instantly. Ask why those four specifically were chosen, and the fuller answer reveals Borglum's intent to tell a 150-year story of the nation's founding, growth, and survival in granite, a story that, like most American history, is more complicated up close than it looks from the overlook.

Staying Connected Through the Hills

A no-contract cellular internet setup gives RV families a practical way to navigate between Black Hills attractions, check campground availability, or simply look up trail conditions before a hike, without committing to a long-term plan for a trip lasting a week or two. As with any mountain terrain, signal varies by exact location, and the honest expectation is a workable connection for research and communication, not guaranteed high-speed performance everywhere in the Hills.

Crazy Horse: The Monument Still Being Carved

A short drive from Mount Rushmore, the Crazy Horse Memorial has been under construction since 1948, started by sculptor Korczak Ziolkowski at the request of Lakota elders who wanted their own hero memorialized on the same scale as the four presidents nearby. The completed face alone, finished in 1998, stands 87 feet tall, nearly 30 feet taller than any single face on Mount Rushmore, and the full monument, once finished, will depict Crazy Horse mounted on horseback, pointing toward the land he fought to defend. It remains funded entirely through admissions and donations, by design, since the Ziolkowski family has twice turned down federal funding offers to keep the project independent of the same government that took the Black Hills in the first place.

A Visitor Tradition Worth Knowing

For nearly 30 years, Lakota elder Benjamin Black Elk, son of the well-known medicine man Black Elk who had been present at the Battle of the Little Bighorn, greeted Mount Rushmore visitors daily in traditional regalia, becoming known as the unofficial "Fifth Face" of the monument and one of the most photographed people in the world during that stretch. His presence offered a small, human link between the monument's official story and the people whose land it was carved from, a link that's easy to miss without knowing to look for it.

Why It Cost Less Than You'd Think

The entire Mount Rushmore project cost just under $990,000 to complete, the equivalent of roughly $17 million today, a remarkably small sum for a monument carved into solid granite and visible from miles away. Most of that funding came from the federal government, with the rest raised through private donations during a Great Depression when money for any large public project was hard to come by.

Symbols Built for the Long Haul

The granite that makes up Mount Rushmore erodes at a rate of roughly one inch every 10,000 years, meaning the monument is expected to remain recognizable for tens of thousands of years into the future, longer than written human history itself has existed. Whatever arguments the current generation has about what the mountain represents, the rock itself isn't going anywhere soon, which makes getting the full story right now, while the debate is still active, worth the effort.

Worth Teaching the Kids in the Back Seat

Homeschooling families passing through the Black Hills this summer have a rare chance to teach a more complete version of this history than most classrooms cover, the engineering feat and the land dispute together, rather than picking one side of the story and leaving the other out entirely. A monument built to last tens of thousands of years deserves a story told just as carefully.

A Mountain Still Telling Its Story

Nearly three million visitors a year stand at the base of Mount Rushmore and look up at four faces meant to summarize 150 years of American history. The honest version of that history is bigger than four faces can hold, but standing there in person, with the wind coming off the pines and the granite catching the evening light, it's not hard to understand why Doane Robinson thought a mountain might be the only thing big enough to try. If your RV trip through the Black Hills or anywhere else needs reliable connectivity, Backroads WiFi has no-contract options at www.BackroadsWiFi.com.

One More Fact Worth Knowing

Nearly 90 percent of the rock removed from Mount Rushmore was blasted away with dynamite, with the remaining 10 percent carved by hand using smaller tools, a method called honeycombing that let workers get within inches of the final surface before finishing it by hand.

Worth Sitting With

A monument carved by hand and dynamite, on land taken by treaty violation, still standing as one of the most visited symbols of the country it represents, captures something true about America itself: built by real people, on real disputed ground, telling a story that's still being argued over a century later.