Native Americans in national costumes, alongside demonstrators with banners reading "Save Bears Ears", "Protect Wild Utah" and "Hands off Utah", called for the monuments to be preserved.
Trump had asked Zinke to reassess the status of more than two dozen monuments established since 1996.
But the plan faces opposition from environmentalists and tribal leaders, who have decried it as illegal and an affront to Native Americans.
Chrissy Teigen Calls Out John Legend For Low-Quality Birthday Post
Later that evening, Chrissy and John headed to Pacoima, California to celebrate her birthday. She celebrated her 32nd birthday with a Pan-Am theme party.
It was reported that the plan would be announced by US President Donald Trump when he visits Utah next Monday, Xinhua news agency reported.
The two monuments were designated by former presidents Barrack Obama and Bill Clinton respectively.
Bears Ears presently a 1.3-million-acre monument in Utah's San Juan County, would be divided into the Indian Creek National Monument and the Shash Jha National monument. The plan would cut the overall size of Bears Ears from 1.35 million acres to 201,397 acres and Grand Staircase-Escalante from almost 1.9 million acres to 997,490 acres.
Ali dethrones Cotto, seizes WBO 154lb title
A six-time world champion in four different weight divisions, Cotto (41-5-KO33) vowed he would stick by his decision to retire. He is now 17-1. "I am glad that we got the win, and I continue being unbeaten with my belt", Vargas said.
The spokeswoman, Heather Swift, declined to offer any other details.
Attorney general for the Navajo Nation, Ethel Branch, said Trump should visit the monuments before making a decision on them.
Hatch said in a statement Thursday that 'details of the president's announcement are his and his alone to share, ' but added: 'I appreciate his willingness to listen to my advice and even more importantly, to give the people of Utah a voice in this process'.
Los Angeles Clippers guard Austin Rivers fined for using profanity toward fan
The NBA has no tolerance for players treating fans like that getting caught on video treating fans like that. To make matters worse, forward Blake Griffin suffered a sprained MCL on Monday and could miss two months.
The President is expected to "shrink" the monuments in a Salt Lake City event on Monday. When inquired about the maps and advanced alterations a mouthpiece for the interior department that administers national monuments and public lands said that they are shoving imprecise information.