The "Porkchop" GPS station located in SW part of Norris Geyser Basin
By Volcano Hazards Program
1905 (approx.)
![Norris-2003. The "Porkchop" GPS station located in the southwestern...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/vhp_img47.jpg?itok=1TlxmtIc)
Detailed Description
This Global Positioning System sensor can detect millimeter-scale movements of the ground surface.
Sources/Usage
Public Domain.