Resaca de la Palma State Park is a 1,200 acres (490 ha) state park in Brownsville, Cameron County, Texas, United States. It is the largest of three state parks belonging to the World Birding Center. The park is managed by the Texas Parks and Wildlife Department and opened to the public in December 2008. A resaca is a type of oxbow lake that can be found in Texas, and is a former channel of the Rio Grande. It is naturally cut off from the river, having no inlet or outlet.