On May 8, 1846 troops of the United States and Mexico clashed on the prairie of Palo Alto in the first battle of a two-year war.

Signed into law in June 1992, Palo Alto Battlefield National Historic Site preserves the 3,400-acre scene of this clash between nations and informs visitors about its national and international importance. As the only unit of the National Park Service with a primary focus on the U.S.-Mexican War, Palo Alto Battlefield also interprets the entire conflict--including the details of its origins and the broad range of consequences. In an effort to turn a scene of conflict into a place of bi-national exchange and understanding, all research and interpretation conducted by the park reflects perspectives of both the United States and Mexico.

Operating Hours & Seasons

The park interim visitor center is open Monday through Friday, 8:00 a.m. to 4:30 p.m., year round. Interim, on-site facilities are open 8:30 a.m. - 4:30 p.m.. year round. Both areas are closed weekends and federal holidays. Hours of operation will increase as the park develops.