Amistad National Recreation Area Located near Del Rio, TX TRAVEL BASICS - CAMPING - LODGING ACTIVITIES - FACILITIES - FEES/PERMITS Monarch Butterflies stop briefly at Amistad NRA on their migration route to Mexico in the fall. NPS Photo IN BRIEF A splash of blue stands out against limestone cliffs. The honking of a great blue heron, interspersed with the descending trill of a canyon wren, can be ...