Amid an ongoing government shutdown, the U.S. Department of Interior is planning to fire thousands of employees, including nearly 200 federal workers based in Colorado who work in land management and research.

President Donald Trump’s administration outlined the plans to abolish more than 2,000 positions across the Interior Department in a document filed in federal court on Monday. A lawsuit filed by labor unions in a California district court has halted, at least temporarily, the department’s proposed reductions in force.

In Colorado, the proposed cuts include slashing 87 of 177 positions at the Bureau of Land Management’s National Operations Center in Denver, or about 49%, and 39 of 69 positions at the U.S. Geological Survey’s Fort Collins Science Center, or about 57%.

The Bureau of Land Management’s Colorado Office would lose 33 of 595 positions, or about 6% of its staff, while the National Parks Service Denver Service Center would lose about 40 of its 224 positions, or about 18%, according to the court filing.

In a statement, U.S. Rep. Joe Neguse (D-Colorado) called the proposed cuts “shameful” and promised to “use every legal and legislative tool” to reverse the administration’s decision to slash federal land management agencies.

“The attempt to use a government shutdown to unlawfully terminate hard-working federal employees across Colorado is illegal, pure and simple,” Neguse said. “The Trump administration’s unlawful and politically motivated attacks on workers at our land management agencies … will inflict direct harm on both these civil servants and all Coloradans who treasure our lands and waters.”

Amid the budget fight in Congress, Trump’s administration has threatened to use the shutdown to fire federal workers, expanding on the deep cuts his administration made to staffing at federal agencies earlier this year. Last week, White House Budget Director Russell Vought described the shutdown as an “opportunity” during an appearance on “The Charlie Kirk Show” and said cuts could include “north of 10,000” federal employees.

In the court filing, Interior Department Chief Human Capital Officer Rachel Borra said that the reduction in force plans predated the government shutdown that began Oct. 1 and were not related to the shutdown.

Colorado’s national parks have largely remained open to the public during the government shutdown, albeit with limited staff. At Rocky Mountain National Park, which accounts for nearly 75% of the state’s park-related visitation, fees have gone uncollected during the shutdown despite the fact that volunteers who are helping to maintain services say visitors keep coming.

The proposed cuts at the Department of Interior come as the Trump administration has already taken an ax to the federal workforce. Soon after taking office, Trump issued an executive order that directs all federal agencies to eliminate “waste” and “bloat.” That led to the firing of thousands of “probationary employees,” which includes recent hires or those starting new roles. Even more federal workers have left through the administration’s voluntary resignation programs.

Colorado state director of the Bureau of Land Management Doug Vilsack earlier this summer described “big holes” at the agency and concern among employees that more cuts could be coming down the pipe.

In a statement, National Parks Conservation Association Executive Director Theresa Pierno said, “this court filing confirms our worst fears.”

Pierno continued, “These court filings offer a glimpse of what’s ahead, with only a small portion of the planned layoffs disclosed so far. No matter the size, any additional cuts to the Park Service will be devastating.”