Elk Creek residents watch as soil samples containing niobium are removed from a drill at a proposed mine site near Elk Creek, Neb., during a tour of the site, Wednesday, June 11, 2014. The Canadian ... more 
Elk Creek residents watch as soil samples containing niobium are removed from a drill at a proposed mine site near Elk Creek, Neb., during a tour of the site, Wednesday, June 11, 2014. The Canadian NioCorp Developments company resumed drilling samples from beneath the ground near Elk Creek to gather the last samples that will be needed to determine whether a niobium mine is financially feasible. There are two drilling rigs working on the site. (AP Photo/Nati Harnik) less 
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Associated Press | Photo By Nati Harnik
Wed, Jun 11, 2014 7:45 PM EDT