USGS INVAR Rod Encased in Concrete Pillar in Yellowstone, Wyoming (diagram)
USGS INVAR Rod Encased in Concrete Pillar in Yellowstone, Wyoming
![](https://unavco.knowledgebase.co/assets/284/concretepillarmonument_ys.gif)
See the USGS Yellowstone Continuous GPS Network page for more.
See the USGS Yellowstone Continuous GPS Network page for more.
Last modified: 2019-12-27 16:36:35 America/Denver