What two national wildlife refuge are located near the border of mexico?

Two national wildlife refuges located near the U.S.-Mexico border are the Lower Rio Grande Valley National Wildlife Refuge in Texas and the San Bernardino National Wildlife Refuge in Arizona. The Lower Rio Grande Valley Refuge is known for its diverse ecosystems and Birdwatching opportunities, while the San Bernardino Refuge serves as a critical habitat for various wildlife species and offers protection to migratory birds. Both refuges play a vital role in conservation efforts along the border region.