Land Surveying History Hub is a place for land surveyors to discuss and share surveying history for education of future generations of surveyors. As a member of this Hub, you can contribute to the Surveying History Timeline and help Build land surveying time capsules. Contribute what your experience and knowledge to the first ever interactive timeline of land surveying history.
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The Geologic Time Spiral - A Path to the Past
Poster depicting the changes in the Earth and its life throughout its history.
by Graham, Joseph; Newman, William L.; and Stacy, John
U.S. Geological Survey General Information Product 58
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|CCM of Project Open Data||JSON|
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