Black Dog breccia pipe
By Yellowstone
2011 (approx.)
![Black Dog breccia pipe](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/img7717.png?itok=z58sIX9X)
Detailed Description
Black Dog breccia pipe is the remnant of an inactive hydrothermal vent system found along the northern shore of Yellowstone Lake, Wyoming.
Sources/Usage
Public Domain.