Boundary Marker Number 258
Near this site the initial point of the boundary between the United States of America and the Republic of Mexico was established October 10, 1849.
Today, the flag of the United States of America is again raised to symbolize friendship between the peoples of the United States and Mexico and to commemorate the establishment of a State Park adjacent to this point on the International Border.
September 27, 1974
Boundary Marker Number 258 was placed
on the National Register of Historic
Places September 6, 1974
Marker can be reached from Monument Road.
Courtesy hmdb.org
