The Antiquities Act of 1906 has been keeping natural resource attorneys busy since Theodore Roosevelt used the law to protect millions of acres of public land across the Southwest during his presidency, often over the vehement opposition of the congressmen in those states.
President Joe Biden’s decision Friday to return nearly 2 million acres of federal land to Grand Staircase-Escalante and Bears Ears national monuments is not likely to be an exception to this trend. Utah Gov. Spencer Cox indicated in April that the state would likely sue Biden if he restored the monuments, though the Utah Attorney General’s office had not yet done so as of Sunday.
https://www.sltrib.com/news/environment/2021/10/11/what-does-bidens-national/