The Ruby Mine near the headwaters of Lincoln Creek is one of 148 sites in Colorado where draining mines “likely impact water quality” and have no active water treatment, according to information ...

Montepuez Ruby Mining (MRM) has called on the Mozambican authorities to take "more proactive measures" against those who ...

Editor's note: This is the second in a two-part series on the mining town of Ruby. Click here to read the first part. Walter S. Pfrimmer married Natalia Allison on April 18, 1928. The Pfrimmers raised ...

It’s a stark, startling contrast. Beautiful, precious jewels, like rubies, emeralds and sapphires, are often sourced in dismal conditions where disadvantaged workers and lawlessness make it easy for ...

Editor's note: This is the first in a two-part series on the mining town of Ruby. The Oro Blanco mining district 30 miles northwest of Nogales was first prospected by the Spanish for gold deposits. A ...