An EPA employee takes a radiation level reading at an abandoned mine in, Nev. After decades of complaints, the EPA has began work to reverse the devastating effects of uranium mine pollution on the Navajo Nation.

Following Decades Of High Cancer Rates & Birth Defects, EPA Begins Cleanup Of Uranium Mines On Navajo Reservation

The EPA and Navajo Nation have identified 523 abandoned uranium mines scattered throughout Arizona and New Mexico, including dozens located dangerously close to homes or water sources.