360° panorama by William l.
Click the image to open the interactive version.

Looking at the inhospitable landscape of the Little Glass Mountain obsidian flow in the Medicine Lake area of California.  It is smaller than nearby Glass Mountain, being about a square mile in size & just over 1,000 years of age.  Here it is mostly dacite however the slopes of the flow contain an abundance of nice black obsidian.

https://www.360cities.net/image/smooth