AZ Mining Review (episode 22) the Orange Sludge of Patagonia

In mid-October, 2014, heavy rains fueled by Hurricane Odile cause some overflow from abandoned mines near Patagonia, Arizona.

Orange sludge


The Arizona Geological Survey, in its monthly Mining Review, asked geologist Dr. Floyd Gray of the U.S. Geological Survey to explain what happened. Dr. Gray was on the ground and examined several properties and notes there were three “situations” happening due to the rain. Dr. Gray’s portion in the video below begins at the 15:07 minute mark.

Watch the video: