A brief explanation of what these important public lands are and how they differ from national parks and other sites managed by the federal government.
National monuments are nationally significant lands and waters set aside for permanent protection. These public lands are similar to national parks in many ways, with some key differences.
What’s the difference between national monuments and national parks?
The primary difference between national monuments and other kinds of sites, such as national historic sites, national battlefields, national seashores and national parks, is in the way they are established.
Congress can create any kind of national park site by passing legislation designating the specified park.
U.S. presidents can only create national monuments by using the authority granted to them by Congress in the Antiquities Act of 1906. Thus national monuments are usually, but not always, created by the executive branch rather than the legislative branch of government.
Sometimes, the president will set land aside as a national monument and Congress will later amend the monument, changing its designation to a different kind of national park site. Theodore Roosevelt established the Grand Canyon as a national monument in 1908, for example, and Congress later redesignated the site as a national park in 1919.
Are national monuments always physical memorials or buildings?
No. Although many national monuments contain historic structures, these sites protect areas of land and water and are not limited to man-made structures.
Can a president create a national monument from state-owned or privately owned land?
No. A president can only create national monuments from land that is already owned by the federal government.
Are national monuments always part of the National Park System?
No. National monuments can be managed by a number of federal agencies, and are sometimes jointly managed. The U.S. Bureau of Land Management, the U.S. Forest Service, the U.S. Fish and Wildlife Service, and several other agencies also manage these sites.
Do national monuments have bipartisan support?
Presidents of both major political parties have used the Antiquities Act to establish national monuments since 1906. As of May 2017, 16 presidents have created 157 monuments. See a complete list of all U.S. national monuments.