Palmito Ranch Battlefield marks the site of the last land battle of the American Civil War, fought in May 1865 near the Rio Grande after the Confederate surrender at Appomattox. The landscape is quiet and open, with interpretive markers rather than a large visitor center.
It is best for travelers with a specific interest in Civil War or border history. Bring water, expect little shade, and combine it with Palo Alto Battlefield or other Brownsville history stops.