Denver-based Energy Fuels Inc., one of the largest uranium producers in the United States, has signed a landmark agreement with the Navajo Nation on the transport of uranium ore along federal and state highways that cross through Navajo land. The agreement allows the resumption of uranium ore transport from Energy Fuels’ Pinyon Plain Mine in northern Arizona to the company’s White Mesa Mill in southern Utah, where the ore is processed into natural uranium concentrates (U₃O₈).