Herrenbergberg Cave in Germany
![Herrenbergberg Cave in Germany](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/res_pic_pris2_big.jpg?itok=ANGJW5IV)
Detailed Description
The Herrenbergberg Cave in Germany was discovered during the process of digging a new high speed train tunnel. Before its discovery, it was isolated from the surface.
For more information see: https://water.usgs.gov/nrp/microbiology/research/pristine/pristine.html
Sources/Usage
Public Domain.