Historical Marker
Old Point Isabel Lighthouse
Historical marker location:
421 East Queen Isabella Blvd, Port Isabel, Texas
( 421 East Queen Isabella Blvd (SH 100), Port Isabel Lighthouse State Historic Site)
Marker installed: 1936
The beacon for the commerce of the Rio Grande; Erected by the United States Government in 1852; Extinguished during the Civil War; Discontinued, 1888-1895; Permanently discontinued, 1905.