The 1906 Antiquities Act was one of the most ill-considered laws ever written, giving presidents dictatorial power to declare large swaths of the public’s land off limits to a variety of uses normally allowed on federal lands. Under President Barack Obama, this power turned into a monument acquisition spree.
The Antiquities Act grants the president discretionary power “to declare by public proclamation historic landmarks, historic and prehistoric structures, and other objects of historic or scientific interest … to be national monuments.” Congress originally passed the law as an emergency measure to prevent the looting of antiquities on Indian lands. It was intended, as the debate surrounding it shows, only to be used when public lands or artifacts faced immediate threats of destruction and the normal pace of congressional action might take too long to prevent harm.