A “distress” signal hung on one of Yosemite National Park’s most iconic sites by staff members was done in protest of recent layoffs by the Trump administration.

The inverted Stars and Stripes hung on the side of El Capitan, a 3,000-foot wall of sheer granite, on Saturday, Feb. 22. 

Anand K Sankaran captured footage, and told media-gathering website Storyful the flag was hung upside-down just before “firefall,” a period of time when the small waterfall Horsetail Fall “can glow orange when it’s backlit by sunset,” the park’s website says. 

Flying a flag upside down is traditionally a sign of “dire distress,” the United States Flag Code states. The symbol of protest was done by park staffers, media outlets report. The practice dates back at least 50 years, according to the Free Speech Center at Middle Tennessee State University.

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“We’re bringing attention to what’s happening to the parks, which are every American’s properties,” Gavin Carpenter, a Yosemite maintenance mechanic and disabled military veteran who assisted Saturday, told the San Francisco Chronicle. 

“It’s super important we take care of them, and we’re losing people here, and it’s not sustainable if we want to keep the parks open,” he continued.

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Last week, the Trump administration fired about 1,000 newly hired National Park Service employees who maintain and clean parks, educate visitors and perform other functions as part of its broad-based effort to downsize government, the Associated Press reported.

Facing outcry, the administration plans to restore at least 50 jobs across the parks. The park service also said in a new memo it will hire more seasonal workers than normal. The park service has about 20,000 employees.

At least a dozen of those who lost their jobs worked at Yosemite.

“The National Park Service is aware of the unauthorized and inappropriate display that occurred at Yosemite National Park over the weekend,” an Interior Department spokesperson said in a statement to Fox News Digital.

“This blatant disregard for park regulations and respect for our national symbols is unacceptable. The NPS does not condone such actions, and the flag was removed as soon as possible. We take the protection of our national parks seriously and will not tolerate behavior that undermines their integrity,” the statement concluded.

The White House did not respond to a Fox News Digital request for comment. 

The Associated Press contributed to this report.