List of proposed National Monuments of the United States

The President of the United States can establish a national monument by presidential proclamation, and the United States Congress can by legislation. The Antiquities Act of 1906 authorized the president to proclaim "historic landmarks, historic and prehistoric structures, and other objects of historic or scientific interest" as national monuments.

List of proposed National Monuments of the United States

The President of the United States can establish a national monument by presidential proclamation, and the United States Congress can by legislation. The Antiquities Act of 1906 authorized the president to proclaim "historic landmarks, historic and prehistoric structures, and other objects of historic or scientific interest" as national monuments.