Conservationists often like national park proposals, but they are smelling a Trojan Horse in the latest idea from Utah’s Rep. Chris Stewart to create a sixth park in the state, covering the Escalante Canyons.

At a rally Tuesday in front of Utah’s Capitol, speakers claimed that Stewart’s bill to establish a 100,000-acre park in Garfield County is laden with so many toxic provisions that several environmental groups, local business owners, the National Parks Conservation Association (NPCA) and other groups want none of it.

Among the chief defects of Stewart’s “Grand Staircase Escalante Enhancement Act,” they said, is that it seeks to write into law President Donald Trump’s recent proclamation slicing the former national monument by half — and puts Kane and Garfield county commissioners in charge of what’s left.

“To suggest that creating a national park out of what is an extraordinary protected landscape for the purpose of drawing more tourists is insane,” said NPCA Southwest regional director David Nimkin.

At least 100 monument supporters stood behind the dias on the Capitol steps Tuesday afternoon, many holding signs condemning Trump’s actions with slogans such as, “Don’t Codify Corruption,” “Fake President,” and “Coal Kills.”

“Rather than seek to enhance this remarkable place and its undeniable world-class objects, Rep. Stewart has put them squarely in the crosshairs of an all-out assault,” said Steve Bloch, legal director for Southern Utah Wilderness Alliance. “The bill was so hastily introduced, there’s not even a map. We don’t know exactly what lands Stewart is intending to preserve and which he is assaulting.”

A spokeswoman for Stewart said the Republican lawmaker was baffled that environmentalists would be lining up against his park proposal and sought to turn the groups’ criticism against them.

“I’m not familiar with the term ‘fake National Park’. But I can assure you, there is nothing fake about my proposal,” Stewart said, through his spokeswoman.

“I find it ironic that for so long SUWA’s and other environmental groups’ singular answer to increased economic growth in rural Utah has been tourism and yet now they are fighting against it,” the spokeswoman said. “It makes no sense, and is an indicator, I believe, of their unwillingness to engage on these issues in a sincere way.”

On Dec. 4, Trump signed proclamations chopping Grand Staircase-Esclante National Monument into three—now known as Grand Staircase, Kaiparowits and Escalante Canyons national monuments—and Bears Ears National Monument into two small ones.

Stewart’s bill aims to establish the national park and preserve within the 243,241-acre Escalante National Monument, an area outside Boulder marked by sinuous slot canyons and sandstone plateaus. His legislation would also ensure that hunting and grazing are among uses of the land “to be protected, conserved and enhanced” inside the monuments.

The bill would create a seven-member “management council,” dominated by local elected officials, that would craft management plans for these four reserves. Two council members would come from the Garfield County Commission; two from the Kane County Commission; one from the ranks of lawmakers representing the area; and one from the Department of Interior. The remaining spot would be filled by the president.

Critics of that approach say that while local management control may sound good, it puts parochial interests ahead of the larger public interest in preserving special landscapes owned by all Americans.

According to Nimkin, with the NPCA, before Trump carved up the former Grand Staircase monument, it was “the connective fiber in the most remarkable part of this state and indeed the world,” shielding three of Utah’s 13 national park units, Bryce Canyon, Capitol Reef and Glen Canyon.

Stewart’s plan amounts to “subtraction by addition,” Nimkin said, because it would enable industrial development on the 900,000 acres now excluded from the monument and put county commissioners in charge of the rest.

According to Scott Berry, co-owner of Boulder Mountain Lodge just outside the proposed national park, Stewart’s office failed to consult with locals before releasing his proposal.

“I’m a species you all should look closely at because I’m a local that supports the monument,” Berry said Tuesday. “If you were to believe the political establishment in Utah, there are no locals that support the monument. I’m here to tell you as a local that is simply not true.”

Berry warned of the potential impact on towns rimming the former monument from what he called “paved roads and private lands sold off to concessionaires and thousands of more people invited into this delicate country.”

“We don’t want a fake national park in the Escalante,” he said.