Tumacácori National Historical Park in the upper Santa Cruz River Valley of southern Arizona is comprised of the abandoned ruins of three ancient Spanish colonial missions. The Park is located on 45 acres in three separate units. San José de Tumacácori and Los Santos Ángeles de Guevavi, established in 1691, are the two oldest missions in Arizona. The third unit, San Cayetano de Calabazas, was established in 1756. Visitation to the Guevavi and Calabazas units is available only by reservation during monthly tours guided by the Park staff. All visitor services and Park operations are based out of the Tumacácori unit.

The national trail commemorates the route followed by a Spanish commander, Juan Bautista de Anza, in 1775-76 when he led a contingent of 30 soldiers and their families to found a presidio and mission near the San Francisco Bay. Along the trail route, the visitor can experience the varied landscapes similar to those the expedition saw; learn the stories of the expedition, its members, and descendants; better understand the American Indian role in the expedition and the diversity of their cultures; and appreciate the extent of the effects of Spanish colonial settlement of Arizona and California.

“As a result of this expedition, what has been truly characterized by historians as one of the greatest land expeditions the world has known, a new civilization was established in the great American Southwest” reported the House Committee on Foreign Affairs in 1939. “To commemorate permanently the explorations of Francisco Vásquez de Coronado…would be of great value in advancing the relationship of the United States and Mexico upon a friendly basis of cultural understanding,” stated E. K. Burlew, Acting Secretary of the Interior in 1940. It would “stress the history and problems of the two countries and would encourage cooperation for the advancement of their common interests.” The site was first designated “Coronado International Memorial” in 1941 in the hope that a comparable adjoining area would be established in Mexico. Despite interest by the government of Mexico, the Mexican memorial was never created; therefore, Coronado National Memorial was established by Harry S. Truman in 1952.

Knowledge Quest offers historical outline maps and timelines designed for the interactive study of world history and geography.

A look at teaching history across several grades using the classical method of education and a rotation of history every four years.