Matamoros, Mexico
City: Matamoros
County: Mexico
State: Tamaulipas
Lat/Long: 25.864647, -97.506962
Opposite Brownsville, Texas, and twenty-five miles from the mouth of the Rio Grande, Matamoros was captured by American forces in May 1846 during the Mexican War.
Webster's New Geographical Dictionary (Springfield, MA: Merriam-Webster, 1988), 740.