If you've ever toured the Underground Mine in Soudan, you've seen the bats.  After the long elevator ride deep into the Earth ends and the steel doors open,  you're left to encounter the more-than 15,000 bats that have made their residence in the abandoned mine.  Now it appears that that is about to change.

Researchers noted the presence of White Nose Syndrome in 2013.  According to news stories and a post on Facebook, experts are looking at an estimated 70% population loss in the mine site in Northern Minnesota.

Officials will be watching the progress of White Nose Syndrome in the Soudan Mine carefully.  Usually the third year of infection brings the most damage to population numbers for the bats.  If so - this year would have marked the worst of it.