Did you watch Dr. Michael Dennis’s ‘Fate of the US-Survey Foot’ webinar? If not, you should. Here is the link:
https://www.ngs.noaa.gov/web/science_edu/webinar_series/fate-of-us-survey-foot.shtml
As always, Dr. Dennis knocks it out of the park. A Geodetic Rock Star. This webinar should be shown at the beginning of every survey course series and every GIS course taught in the USA.
iG GPS 