Construction has begun on a new 27-mile segment of border wall through Arizona’s San Rafael Valley, marking a significant expansion of border infrastructure in one of the region’s most biodiverse areas. Workers have installed the first 250 feet of the 30-foot-tall steel bollard barrier, which will eventually stretch across what environmental experts identify as the most significant wildlife corridor remaining along the Arizona-Mexico border. The black-painted steel wall replaces existing vehicle barriers that currently allow wildlife to pass through. Fisher Sand & Gravel, a North Dakota-based company, secured the $309 million contract to build the wall. The funding comes from … Continue reading Arizona’s New Border Wall Threatens 100% Block of Large Mammal Migration in Critical Wildlife Corridor