Parks / Palo Alto Battlefield National Historical Park
Palo Alto Battlefield National Historical Park
National Historical Park · TX
On May 8, 1846, U.S. and Mexican troops clashed on the prairie of Palo Alto. The battle was the first in a two-year long war that changed the map of North America. Although the two countries have developed strong bonds and friendly ties since the war ended in 1848, these neighbors continue to contend with the legacy of the war.
Official NPS page →Current Alerts (1)
Road Construction
There will be road construction at both park units starting August 31, 2026, to September 6, 2026. Temporary traffic controls will be in place, and flaggers will guide visitors. Please follow all posted traffic control devices and directions from construction personnel. Crews may adjust construction schedules to accommodate weather or operational needs.
Entrance Fees
This park is fee-free.
Upcoming Events
Living History Program
Sep 12, 2026
Things to Do
Birding at Palo Alto Battlefield
Grab a pair of binoculars, hit the trail, and see what makes Palo Alto Battlefield a birding hotspot.
Birding at Resaca de la Palma Battlefield
With almost a mile of walking trails plus a deck over the water, Resca de la Palma Battlefield is a great place for birding.
Discover Palo Alto Battlefield’s Visitor Center
Palo Alto Battlefield's visitor center offers indoor and outdoor exhibits. A good place to start is with our 15-minute video—"War on the Rio Grande." The video is available in English and Spanish.
Explore the Brownsville Historic Battlefield Trail
Palo Alto Battlefield serves as a gateway to the Brownsville Historic Battlefield Trail. The trail provides users a healthy way to explore Brownsville, TX and some of its historic sites and attractions.
Hiking the Battlefield Trail
Walk in the footsteps of history! Along your half-mile walk you will see a landscape very much like the one experienced by soldiers in 1846.
See Where it All Started - Rancho de Carricitos
Visit the site of the first official combat between of the U.S. - Mexican War. On April 24, 1846 Captain Seth Thornton and his 80 dragoons were ambushed by General Anastasio Torrejón and his 1,600 cavalry and infantry troops at Rancho de Carricitos. News of the skirmish was forwarded to President James K. Polk leading him to declare Mexico "has invaded our territory, and shed American blood upon the American soil."
Self-guided Field Trips at Palo Alto Battlefield
Take your teaching to the next level and make Palo Alto Battlefield your classroom. Visiting the site of the first major battle of the U.S.-Mexican War provides you and your students with an invaluable learning experience. Your visit will also address U.S.-Mexican War TEKS elements for 4th—8th grade. Take advantage of this opportunity.
Stand on the Grounds of General Zachary Taylor's Fort on the Rio Grande
Visit the site of the earthen fortification that became known as Fort Brown. While visiting this site you can see historical markers and even what is left of one of the fort’s bastions. The campus of UTRGV near the Mexican War era Fort Brown site is also home to several post-Mexican War buildings.
Visiting Fort Polk
When the U.S. army arrived in the Rio Grande delta in March 1846, General Taylor’s first stop was to establish a base that would allow him to receive reinforcements and materiel. He selected the Mexican settlement known as El Frontón de Santa Isabel.
Visit Resaca de la Palma Battlefield
Resaca de la Palma Battlefield features a half-mile circular trail with interpretive waysides. Head out to the observation deck on the resaca and experience why resacas make Brownsville, TX such a special place.
Visitor Centers
- Palo Alto Visitor Center
Source: National Park Service.