Trump plan ends research on uranium mining near Grand Canyon

In this June 7, 2013, fie photo provided by the U.S. Geological Survey, scientists, from left, Christine Dowling, Adam Benthem, and David Naftz collect soil samples on the Canyon Mine property in Arizona. More than a quarter of the way into a 20-year ban on the filing of new mining claims around the Grand Canyon, scientists say they don't have the data they need to show whether uranium negatively is impacting plants, animals and a water source for more than 30 million people.

Flights resume on tribal land after fatal Grand Canyon crash

In this Saturday, Feb. 10, 2018, photo, a survivor, lower right, walks away from the scene of a deadly tour helicopter crash along the jagged rocks of the Grand Canyon, in Arizona. In this Saturday, Feb. 10, 2018, photo, a survivor, lower right, walks away from the scene of a deadly tour helicopter crash along the jagged rocks of the Grand Canyon, in Arizona.

Expert: Copter in Grand Canyon crash more likely to explode

An expert says investigators are likely to pay special attention to the type of helicopter that crashed in the Grand Canyon, killing three British tourists In this Saturday, Feb. 10, 2018, photo, a survivor, lower right, walks away from the scene of a deadly tour helicopter crash along the jagged rocks of the Grand Canyon, in Arizona. FLAGSTAFF, Ariz.