Columns formed by the cooling of basalt, Long Valley Caldera region...
By Volcano Hazards Program
2007 (approx.)
![Columns formed by the cooling of basalt. Talus pile of broken colum...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/vhp_img177.jpg?itok=wRf73C0X)
Detailed Description
Columns formed by the cooling of basalt. Talus pile of broken columns at the base.
Sources/Usage
Public Domain.
unknown USGS source