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USGS INVAR Rod Encased in Concrete Pillar in Yellowstone, Wyoming (diagram)

USGS INVAR Rod Encased in Concrete Pillar in Yellowstone, Wyoming

See the USGS Yellowstone Continuous GPS Network page for more.

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  • concretepillarmonument_ys.gif (18.17 KB) 1557
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    Last modified: 2019-12-27  16:36:35  America/Denver