FILE - In this May 28, 2013, file photo, a hiker walks on a rock formation known as The Wave in the Vermilion Cliffs National Monument in Arizona. President Donald Trump signed an executive order Wednesday, April 26, 2017, directing his interior secretary to review the designation of dozens of national monuments on federal lands, as he singled out "a massive federal land grab" by the Obama administration. (AP Photo/Brian Witte, File)
FILE - In this May 28, 2013, file photo, a hiker walks on a rock formation known as The Wave in the Vermilion Cliffs National Monument in Arizona. President Donald Trump signed an executive order Wednesday, April 26, 2017, directing his interior secretary to review the designation of dozens of national monuments on federal lands, as he singled out "a massive federal land grab" by the Obama administration. (AP Photo/Brian Witte, File) Credit: Brian Witte

Washington — President Donald Trump signed an executive order on Wednesday instructing Interior Secretary Ryan Zinke to review any national monument created since Jan. 1, 1996, that spans at least 100,000 acres in a move he said would “end another egregious use of government power.”

Referring to the 1906 law that empowers a president to take unilateral action to protect cultural, historic or natural resources on federal land that is under threat, Trump declared, “The Antiquities Act does not give the federal government unlimited power to lock up millions of acres of land and water, and it’s time that we ended this abusive practice.”

The sweeping review — which Trump predicted would “end these abuses and return control to the people, the people of all of the states, the people of the United States” — could prompt changes to areas designated not only by former president Barack Obama but also by George W. Bush and Bill Clinton.

Speaking to reporters on Tuesday evening, Zinke suggested he would keep an open mind as he scrutinized past monument designations and that in and of itself the order would not repeal any existing monuments. “I’m not going to predispose what the outcome is going to be.”

But Trump indicated that he was eager to change the boundaries of a 1.35-million-acre national monument Obama declared in December in Utah, Bears Ears, and that he wanted governors and those living near these sites to have the ultimate say over how it’s managed. He singled out several opponents of recent Antiquities Act designations, including Sen. Orrin Hatch, R-Utah and GOP Govs. Gary Herbert, of Utah, and Paul LePage, of Maine, saying, “Today we are putting the states back in charge.”

“I’ve spoken with many state and local leaders, a number of them here today who care very much about preserving our land, and who are gravely concerned about this massive federal land grab. ” Trump said. “And now we’re going to free it up, which is what should have happened in the first place. … And tremendously positive things are going to happen on that incredible land, the likes of which there is nothing more beautiful anywhere in the world.”

The order, which appears to affect 25 existing national monuments, it is sure to spark an intense political and legal battle.

Outdoor Industry Association Executive Director Amy Roberts, whose group pulled its major trade show out of Utah in protest of the state government’s opposition to the establishment of the Bears Ears National Monument, said in an interview on Tuesday that her members were “concerned” about any effort to alter existing monuments.

“We will participate in that process and make the argument for why these monuments have supported local communities and their economic vitality,” said Roberts, whose group hosted Zinke at an event on Tuesday at the National Press Club.

“As Tribes, we will gather ourselves together to continue the fight to save our lands for the future of not just Native people, but all people who connect with these lands,” said Shaun Chapoose, the highest elected office holder of the Ute Indian Tribe. “Bears Ears National Monument is more than just mere federal land to us, as it may be to many other stakeholders — it is a living landscape; it has a pulse. It is offensive for politicians to call the Bears Ears National Monument ‘an abuse.’ ”

Theresa Pierno, president of the National Parks Conservation Association, said in a statement Tuesday night that any attempt to alter or undo an existing monument “isn’t just undermining a century-old law, it’s a betrayal of the people who fought so hard for them and the land and history we’ve all spent generations safeguarding.”

Zinke said he will examine whether any designations had led to “loss of jobs, reduced wages and reduced public access” because “some of these areas were put off limits for traditional uses, like farming, ranching, timber harvest, mining, oil and gas exploration, fishing, and motorized recreation.”

“We’ll look at what sectors were affected, plus or minus, and that will be part of the recommendation. … Some jobs would probably be created by recreation opportunities,” he said. “By and large, the Antiquities Act and the monuments that we have protected have done a great service to the public and are some of our most treasured lands in this country. … Those out in the West would probably say it’s abused.”

Grand Staircase Escalante Partners Executive Director Nicole Croft, whose group represents local businesses and other supporters of a monument Clinton established in 1996, said the tourists who have come to visit since it was established have spurred much broader economic growth in the area.

“Tourism is the anchor of the economy. But we now have a dentist in town,” Croft said. “We’ve got a building boom and a labor shortage.”

But Ethan Lane, executive director of the Public Lands Council at the National Cattlemen’s Beef Association, said it was time for the administration to scrutinize how the Antiquities Act has been applied and “update” the law itself. He noted that the number of active federal grazing permits at Grand Staircase-Escalante has been cut nearly in half compared to when it was first established, despite the fact that the designation specifically allowed for grazing to continue.

“We’re not against protecting the resource,” Lane said, but added that when it came to the 1906 law, “using it as a multimillion-acre land management tool is not appropriate.”

Croft countered that several factors, including the overall demand for beef and drought conditions in Utah, have depressed ranching in the area.