Article snippet: Environmental groups and five Native American tribes have filed two lawsuits to block the Trump administration's plan to drastically scale back two national monuments in Utah. President Donald Trump announced the decision on Monday at the Utah State Capitol. Opponents immediately vowed to take legal action to block the changes. On Tuesday, a coalition of five tribes filed a complaint in D.C. District Court, arguing the president did not have the authority to undo or replace the existing Bears Ear National Monument. The tribes have long argued that the land protected by President Barack Obama is an important part of their heritage and includes historic and culturally significant artifacts. The team of lawyers representing the Navajo Nation, Hopi tribe and others is asking the court for an immediate injunction on the Trump decision to prohibit so that the new monuments boundaries cannot be enforced until the matter can be fully litigated. Shaun Chapoose, a leader from the Ute tribe who is part of the coalition, said at a press conference Monday the announcement was a line in the sand. "We gathered as sovereign tribes and put aside our differences to benefit not just us but the citizens of the United States. So with that same mentality we'll do the same to protect it. And if they think we're not prepared to protect it they're kidding themselves," Chapoose said. In a second lawsuit environmental and conservation groups, including the Sierra Club, ... Link to the full article to read more