WASHINGTON – The small town of Superior has pinned its livelihood to copper, silver and gold mines for more than a century, but never has it had a prospect like this.

A uranium mining company that was sinking a shaft for a mine south of Grand Canyon National Park has put the work on hold, citing market conditions and the expense of litigation. Energy Fuels Resources Inc. said the operation will ...

As chief lobbyist of the National Mining Association, it falls on Hal Quinn, the group’s president and CEO, to promote his industry. That means defending coal mines and, ultimately, America’s reliance on the fuel source to power homes and businesses.

The Arizona House has approved a bill to allow waste tires to be used as fill in abandoned mines. The House's 35-21 vote June 22 sends the bill to the Senate. It would require that tires be covered by 10 feet of rock or dirt.