May 9 (Reuters) - A U.S. federal judge on Friday

temporarily blocked the Trump administration from transferring

Arizona land to Rio Tinto and BHP to build a

major copper mine that is opposed by Native Americans.

U.S. District Judge Steven Logan said in an 18-page ruling

that the federal government cannot move forward on the land

exchange while the U.S. Supreme Court considers a separate,

long-standing request to halt the project.