For those planning vertical installations, I found a nice full-color version of the FCC Soil Conductivity map online. It's in html format, but most browsers should be able to print individual pages for your own area:
https://worldradiohistory.com/FCC_Ground_Conductivity_Maps.htm
(Finding out my area is 2mS/m wasn't good news)
73...
Randy, W8FN
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