Local opponents fear the border infrastructure project near Big Bend will cause severe environmental damage, including an increased risk of flooding. Environmental impact concerns growLocal perspective:The conflict also comes as opponents of border wall construction near Big Bend say they remain concerned about potential environmental impacts in the region. "For generations, Big Bend's remote landscape has remained largely untouched by the steel barriers found elsewhere along the southern border," said Yolanda Alvarado of the No Big Bend Wall Coalition. Federal infrastructure plans shift border wall targetsDig deeper:The dispute comes as CBP's publicly available border infrastructure maps have changed over time. The latest version shows no physical border wall planned in or around Big Bend National Park or Big Bend Ranch State Park.