Concrete Pillar at Platteville, Colorado (diagram) |
Concrete Pillar at Platteville, ColoradoInstalled by National Geodetic Survey Contact: Richard Cohen, NGS Colorado State Advisor |
Posted by: Beth Bartel - November 12, 2008. This article has been viewed 536 times. |
Online URL: https://kb.unavco.org/article/concrete-pillar-at-platteville-colorado-diagram-283.html |
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