National Park Service, Texas.
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.
The park is located on Brownsville's north side, near the city of Los Fresnos. It is just north of the intersection of FM 1847 (Paredes Line Rd.) and FM 511/FM 550.