President Donald Trump ordered the review last month, saying protections imposed by his three immediate predecessors amounted to "a massive federal land grab" that "should never have happened".
In June of 2000, President Clinton proclaimed around 52,000 acres in Jackson County as the Cascade-Siskiyou National Monument.
On Friday, Interior released a list of monuments to be reviewed, including Bears Ears and Grand Staircase.
The list includes 22 monuments on federal land in 11 states and five marine monuments in the Atlantic and Pacific Oceans. "Part of being a good steward is being a good neighbor and listening to the American people who we represent", said Zinke, a former Montana congressman.
"Once it's designated, it's designated", said Davis Filfred of the Navajo Nation.
The Department of the Interior will accept comments about the designation until May 12. The other 21 monuments on the list are larger than 100,000 acres.
He is scheduled to meet Sunday with the Bears Ears Commission, a panel of tribal leaders formed under the proclamation Obama signed December 28 setting aside the 1.35 million-acres monument in San Juan County.
In addition, Zinke will explore each monument's effects on uses of federal land, concerns of local, state and tribal governments, and the availability of federal resources to manage the monuments.
Republicans in the state asked Trump to take the unusual step of reversing Obama's decision.
Interior Secretary Ryan Zinke has been directed to produce an interim report next month and make a recommendation on Bears Ears, and then issue a final report within 120 days. Orrin Hatch, complained that Obama overused the law to over-protect land.
One commissioner, Phil Lyman, had previously led an ATV ride through protected canyons to protest federal control of public land.
That timetable for a decision on the monument has energized opponents of the plan, a coalition that includes the Native American tribes, outdoor outfitters and environmental organizations.
And outdoor groups and environmentalists, like the outfitter Patagonia, have pledged to file suit on their own, too.
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The newspaper ads quotes Trump - "I've heard a lot about Bears Ears, and I hear it's beautiful" - before urging people to take action against the President.