The Sabal Palm Sanctuary is a 557-acre (225-hectare) nature reserve and bird sanctuary located in the delta of the Rio Grande Valley in Cameron County near Brownsville, Texas. It is noted for being one of the last locations in the Rio Grande Valley with a profuse grove of sabal palms, an edible-heart-bearing palm much prized by pre-Hispanic inhabitants and noted by early explorers. As a relatively habitat-rich remnant of this Valley, it is a prized birdwatching and butterfly watching location for persons interested in the ecology of the Valley and adjacent states of northern Mexico.