Swarms of squatters, rogue climbers and illicit BASE jumpers have descended on Yosemite National Park as the California site grapples with staffing shortages amid the ongoing government shutdown — but the head of the Department of the Interior vehemently denies claims that the park isn’t fully staffed.

Shocking videos on social media show throngs of reckless jumpers launching off El Capitan, climbers scaling Half Dome’s 8,839-foot cables without permits and hordes of trespassers taking over closed campgrounds — all in blatant violation of national park regulations, according to local reports.

“It’s like the Wild Wild West,” John DeGrazio, founder of YExplore Yosemite Adventures, told SFGate.

“This is different. These people are counting on no enforcement because of the shutdown.”

Since the government shutdown on Oct. 1, National Park Service employees have been furloughed without pay — even as the Trump administration’s contingency plans have kept the federal parks open.

A park employee, speaking anonymously, told the outlet that only one wilderness ranger — a volunteer — has been patrolling the 1,169-square-mile park since the shutdown started.

“There are lots of squatters in the campgrounds,” the worker said.

“There are lots of people that truly believe they can do whatever they want because of the lack of rangers. They’ve told us.”

Local climber Charles Winstead — who posted wild clips of law-defying daredevils soaring from El Capitan, the park’s iconic 3,000-foot summit — said he’s seen at least a dozen BASE jumpers this week.

The extreme sport — in which adrenaline junkies jump from fixed objects and deploy a parachute to break their fall — was pioneered in Yosemite in the 1970s but outlawed in national parks in the 1980s. 

“You hear them before you see them,” Winstead told the San Francisco Chronicle. 

Here's what we know about the government shutdown

• The Trump administration revealed in a court filing that more than 4,000 federal workers were fired on October 10 as a result of the ongoing partial government shutdown. 
• The bulk of the layoffs took place at the Treasury Department and the Department of Health and Human Services, where approximately 1,446 and up to 1,200 employees, respectively, were fired, according to reports. 
• Airports across the country have experienced delays this week because of a shortage of controllers.
• President Trump said on October 11 that he would use his authority as commander in chief to pay military troops despite the government shutdown.
• The shutdown began on Oct. 1 after Democrats rejected a short-term funding fix and demanded that the bill include an extension of federal subsidies for health insurance under the Affordable Care Act.

“Then the parachute pops, and there’s no more noise. But it’s been happening so much, I hardly look up.”

The Department of the Interior — which oversees the National Park Service — said Tuesday that it’s “aware of reports” of escalating violations and plans to investigate, noting that essential staff covering “critical functions” protecting life, property and public health are still on duty at the protected reserve.

While it remains unclear just how many federal workers are patrolling Yosemite, Interior Secretary Doug Burgum rebuked reports of a staffing crisis, insisting that the park “remains fully staffed” with law enforcement rangers and campground personnel — blaming Senate Democrats for the government shutdown.

“These are false claims that are going on by folks that are trying to often raise money, I call them grifters…but Yosemite is staffed, it’s open,” Burgum told Fox News Wednesday.

“Of course all of our many sites – we have over 450 historical sites, 63 flagship national parks – all of these would be better operated and better staffed if the Senate would just get us back into government. We’re not even allowed to have volunteer groups come onto the parks right now and help out if they have to access buildings that are federally funded.

“The waste of time around a government shutdown is absolutely unbelievable when you’re trying to manage 20% of the land in America. The Democrats have no idea what they’re doing.”