Lower Rio Grande Valley Sierra Club

We make our homes in a region with some of the most biologically diverse habitat in the United States. Our stretch of rio flows through the South Texas brushland from Laredo to Boca Chica at the Gulf of Mexico, creating riparian forests of cedar elm and Texas ebony, palm-lined wetlands and resacas, and a rich estuary on the coast. The Central and Mississippi migratory flyways converge here to bring hundreds of bird species to the area each spring and fall. It is also the northernmost range of many subtropical birds and butterflies, which are found nowhere else in the United States. We share the land with many threatened and endangered species, including the star cactus, the ocelot, and the brown pelican.