INTERIOR/TRUMP EXEC ORDERS: ” ‘Review of Designations Under the Antiquities Act’
The order directs the Secretary of Interior Ryan Zinke to review federal monument designations — including national parks — made since 1996 that cover more than 100,000 acres of land. Under the 1906 Antiquities Act, presidents have the power to protect land.
Trump’s order names one national monument designation in particular: Obama’s 1.35 million-acre Bears Ears National Monument in Utah. Zinke must submit a report to Trump within 45 days.”

-Avalon Zoppo, Amanda Proenca Santos, and Jackson Hudgins, “Here’s the Full List of Donald Trump’s Executive Orders,” NBC News, Oct 17, 2017 11:58am