01 1572.01.21 Saguaro Wall.jpg

Measuring up to 40 feet tall, saguaro cacti in Organ Pipe Cactus National Monument tower over the border wall near Lukeville, Arizona. "There's a lot of sections in this national monument to nature where the dividing line doesn't make any sense," photographer Lisa Elmaleh says. The wall also creates a barrier in ecosystems that span the border, making it impossible for animals to move naturally through their habitat. "The fence is an intense visual in the landscape," Elmaleh says. "The [cacti] are facing each other, so you can imagine what it may have looked like without the wall there, and the saguaros in particular have this human quality, almost like they're waving at each other through the wall." (© Lisa Elmaleh)