Cleaning up over 500 abandoned uranium mines inside the Navajo Nation

NAVAJO NATION, AZ (3TV/CBS 5) — There are an estimated 140,000 abandoned hard rock mines in the country, including more than 500 uranium mines across the Navajo Nation. If they aren’t cleaned up, they could bring serious health and environmental risks …NAVAJO NATION, AZ (3TV/CBS 5) — There are an estimated 140,000 abandoned hard rock mines in the country, including more than 500 uranium mines across the Navajo Nation. If they aren’t cleaned up, they could bring serious health and environmental risks …