The Trail of the Ancients is a collection of National Scenic Byways located in the U.S. Four Corners states of Utah, Colorado, New Mexico, and Arizona. These byways comprise:The 366-mile (589 km) Trail of the Ancients National Scenic Byway in San Juan County, Utah; The 116-mile (187 km) Trail of the Ancients Scenic and Historic Byway in Montezuma County, Colorado; The 662.4-mile (1,066 km) Trail of the Ancients Scenic Byway in McKinley and San Juan counties, New Mexico; The 100.3-mile (161 km) Dine' Tah "Among the People" Scenic Road in Apache County, Arizona, and the 26-mile (42 km) Kayenta-Monument Valley Scenic Road in Navajo County, Arizona.

Canyons of the Ancients National Monument is a national monument protecting an archaeologically significant landscape located in the southwestern region of the U.S. state of Colorado. The monument's 176,056 acres (712.47 km2) are managed by the Bureau of Land Management, as directed in the presidential proclamation which created the site on June 9, 2000. Canyons of the Ancients National Monument is part of the National Landscape Conservation System, better known as the National Conservation Lands. This system comprises 32,000,000 acres (130,000 km2) managed by the Bureau of Land Management to conserve, protect, and restore these nationally significant landscapes recognized for their outstanding cultural, ecological, and scientific values. Canyons of the Ancients encompasses and surrounds three of the four separate sections of Hovenweep National Monument, which is administered by the National Park Service. The monument was proclaimed in order to preserve the largest concentration of archaeological sites in the United States, primarily Ancestral Puebloan ruins. As of 2022, over 8,500 individual archeological sites had been documented within the monument.