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Park Signage Lawsuit: History and Science in the Crosshairs

Boston, Massachusetts, USA,Wednesday, February 18, 2026
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A coalition of conservationists, historians, and scientists has filed a lawsuit against the current federal administration. The suit challenges new rules that have prompted the removal or alteration of educational displays across national parks in the United States.

Background

  • March 2025: An executive directive called for a “restoration of truth and sanity” at public museums and parks.
  • May 2025: A memo from the interior secretary demanded removal of what it termed “improper partisan ideology.”
  • Summer 2025: Park officials began acting on these instructions, according to the complaint.

Affected Sites

Park Removed Content
Grand Canyon National Park Panels criticizing settlers and ranchers
Sunset Crater Volcano Monument Sign about basalt bubbles featuring a Pride flag
Muir Woods (California) Notices on Indigenous peoples, women’s conservation roles, and eugenics
Acadia, Lowell, Glacier, Jamaica Bay Wildlife Refuge, President’s House Site (Philadelphia), Fort Sumter, Grand Teton Various historical and scientific displays

The lawsuit claims thousands of other items across historic and natural sites have been flagged for removal.

Plaintiffs

  • National Parks Conservation Association
  • American Association for State and Local History
  • Association of National Park Rangers
  • Union of Concerned Scientists

They argue that these actions strip visitors of critical historical context and scientific knowledge, violating a duty to preserve parks as educational spaces.

  • Declare the interior secretary’s directive unlawful.
  • Stop further removal of historical or scientific material from parks.

On the same day, LGBTQ+ rights advocates and preservationists filed a separate lawsuit targeting the removal of a rainbow Pride flag from the Stonewall National Monument in New York, highlighting the broader conflict over how public spaces represent history and identity.

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