The Trump administration has launched a sweeping campaign to rewrite American history within the National Park Service (NPS), removing signs, exhibits, and interpretive materials that highlight slavery, Native American genocide, and the impacts of climate change. According to an investigation by The Guardian, this effort aims to present a sanitized view of America that excludes stories of marginalized communities, replacing them with a narrow, whitewashed narrative. Critics warn that this censorship not only distorts the past but also threatens the educational mission of the nation's most treasured public lands.
What Is Happening Inside the National Parks?
The crackdown began quietly in early 2025, when the Department of the Interior ordered a review of all interpretive materials across the 433 parks, historic sites, and monuments in the NPS system. Employees were told to remove signs referencing systemic racism, climate change, and LGBTQ+ history. Over the following months, hundreds of signs were taken down or replaced with generic descriptions of natural features.
For example, at Mammoth Cave National Park in Kentucky, a sign commemorating five generations of Bransford cave guides—descendants of enslaved explorers—was flagged for removal. Jerry Bransford, a former NPS ranger and descendant of the original guides, said the sign honored his family's contributions to the park's history. “They were in slavery, but once they went down inside that cave, they were free,” he told The Guardian. The sign remains in place for now, but its future is uncertain.
Key Examples of Erasure
The censorship campaign has targeted a wide range of historical narratives. Below is a table of notable examples documented by The Guardian:
| Park or Monument | Removed or Altered Content | Original Historical Context |
|---|---|---|
| Mammoth Cave National Park | Sign about Bransford family of enslaved guides | Enslaved men explored and guided tours in the 1800s |
| Little Bighorn Battlefield National Monument | References to Native American perspectives on the battle | Honored Lakota and Cheyenne warriors who defeated Custer |
| Mount Rushmore National Memorial | Interpretive panels about the site's sacredness to Lakota people | Black Hills were stolen from Native tribes in violation of treaties |
| Glacier National Park | Displays linking glacier retreat to human-caused climate change | Scientific consensus shows rapid ice loss due to warming |
Why This Matters for Public Memory
Historians and former NPS employees argue that this effort goes beyond simple political pandering. Anne Mitchell Whisnant, a history professor at Duke University who helped write visitor handbooks for several parks, described the censorship as “both stupid and uninformed and very pernicious.” She added, “The Trump administration has a very particular idea of whose stories are important and whose stories made the America that they hope to restore.”
The campaign is part of a broader push to remove diversity, equity, and inclusion (DEI) initiatives from federal agencies. In national parks, this means erasing the contributions of Black, Indigenous, and people of color (BIPOC) from the official record. For instance, at George Washington's Mount Vernon, references to the first president's ownership of enslaved people have been minimized, and at Little Bighorn Battlefield, Native American perspectives on the 1876 battle have been suppressed.
The Role of Climate Change Censorship
One of the most alarming aspects of the campaign is the removal of climate change references. At Glacier National Park, signs explaining that the park's namesake glaciers are melting due to human-caused global warming were taken down. Scientists predict that all glaciers in the park will disappear by 2030, yet the administration has ordered staff to avoid using the term “climate change” in any official materials.
This mirrors actions taken during Trump's first term, when the NPS was prohibited from discussing climate science. However, current and former employees say the current effort is far more aggressive and systematic, with explicit directives coming from political appointees at the Department of the Interior.
FAQ: Understanding the National Parks Censorship Campaign
What exactly is being censored in national parks?
The Trump administration has ordered the removal or revision of signs, exhibits, and interpretive materials that address slavery, Native American history, LGBTQ+ contributions, and climate change. These topics are being replaced with generic, sanitized descriptions that avoid any mention of systemic injustice or environmental crisis.
How did the public find out about this?
The Guardian conducted a months-long investigation, reviewing thousands of images, files, and internal documents, and interviewing current and former NPS employees. Their report, published in July 2026, revealed the scale and scope of the censorship campaign, which had previously been kept quiet.
What can visitors do to learn the full history?
Visitors can seek out independent guidebooks, local historical societies, and digital archives that preserve the original narratives. Some former NPS rangers have started unofficial tours and online resources to share the stories the administration is trying to erase. Advocacy groups like the National Parks Conservation Association are also fighting the changes in court.
Will the erased content ever be restored?
Legal challenges are underway, and historians hope that a future administration will reverse these policies. However, the chilling effect on NPS employees—many of whom fear retaliation for speaking out—could make restoration difficult. The scars of this censorship campaign may last for decades.
