Roosevelt signs the Antiquities Act; no proclamation needed from Congress to seal off federal land
By 1906, pot hunters had been quietly gutting the American West for decades — pulling pottery, bones, and artifacts from prehistoric Native American sites at Chaco Canyon and across the Southwest with no legal barrier to stop them. On June 8, 1906, President Theodore Roosevelt signed the Antiquities Act into law, granting the president authority to designate national monuments on federal land by proclamation alone, bypassing Congress entirely. Roosevelt used that power immediately: before leaving office he proclaimed 18 national monuments, beginning with Devils Tower on September 24, 1906, and added them to a conservation legacy that ultimately placed roughly 230 million acres under public protection.
The Antiquities Act created a presidential tool that has never stopped being used — or fought over. Every president since Roosevelt, save Nixon, Reagan, and George H. W. Bush, has designated or enlarged national monuments under it. The law's tension between executive reach and congressional authority remains live: the Trump administration reduced the size of Bears Ears and Grand Staircase–Escalante in 2017, and the Biden administration restored them in 2021, with the courts still weighing in.
QWhy did Roosevelt sign the Antiquities Act with a deliberate delay — and what did he do with the extra time?
When Senator Charles Fulton attached a rider to an agricultural appropriations bill that would have stripped the president's power to reserve additional forest lands, Roosevelt chose not to veto the bill outright. Instead, he used the window before signing to establish 21 new forest reserves, locking in the acreage before the restriction took effect. Only then did he sign the bill into law. It was a maneuver entirely in character: Roosevelt issued 1,081 executive orders during his presidency — more than any previous president except Grover Cleveland — and treated executive authority as a resource to be spent before opponents could confiscate it.
QWho actually drafted the report that convinced Congress to pass the Antiquities Act, and what had he gone to see?
The legislative push came largely from a single field report. In 1902, Iowa congressman John F. Lacey traveled to the Southwest with the rising anthropologist Edgar Lee Hewett to survey the damage being done by private artifact collectors — 'pot hunters' — at sites like Chaco Canyon in New Mexico. Hewett's subsequent exhaustive report to Congress, cataloguing the archaeological resources of the region and the scale of their destruction, provided the factual foundation the bill needed. Without that document, the Antiquities Act may never have found the momentum to pass. Hewett is largely forgotten today; the law he helped make possible has been used more than a hundred times.
QWhat was the first site Roosevelt protected under the Antiquities Act, and why is that choice surprising given the law's origins?
The Antiquities Act grew directly out of concern for prehistoric Native American ruins — pottery sherds, cliff dwellings, burial sites being looted across the Southwest. Yet the first monument Roosevelt proclaimed under it, on September 24, 1906, was Devils Tower in Wyoming: a massive volcanic rock column with no archaeological significance whatsoever. It was a geological feature, not a ruin. The choice revealed immediately that Roosevelt read the law's phrase 'objects of historic and scientific interest' as broadly as it could possibly be read — a constitutional interpretation the Supreme Court upheld in its first review of the Act in 1920, ruling unanimously that the president held wide discretion over both what to protect and how much land to reserve.
