Estero Llano Grande State Park

Estero Llano Grande State Park is a 230-acre natural area in Hidalgo County that encompasses wetlands, ponds, woodlands, and thorn scrub habitats. The landscape is connected by approximately five miles of walking trails that allow visitors to move through the different ecosystems.

The land was originally part of the Llano Grande Land Grant, given to Juan Jose Hinojosa in 1776 by King Charles IV of Spain before the territory became part of Texas. The parcel was later converted into a protected natural area to preserve its ecosystems.

This location serves as a hub for bird watching and nature education, where visitors learn about the native plants and animals of the Rio Grande Valley. The area attracts bird enthusiasts from around the world who come to observe rare species in their natural habitat.

The park opens daily at 7 AM and features a visitor center, observation decks, and accessible boardwalks for guests. Morning visits offer the best conditions for wildlife viewing, as this is when bird activity is most active and temperatures are cooler.

The area contains a resaca, a specific type of wetland formation found only in South Texas that serves as a crucial habitat element. This rare feature makes the location a valuable spot for researchers and naturalists studying regional ecology.

Location: Hidalgo County

GPS coordinates: 26.12531,-97.95741

Latest update: December 14, 2025 09:40