I thank to Gábor Szilagyi for bring to my attention these fantastic African sinuous enclosures, that present some similarities with the Prehistoric ones of the Guadiana basin. It is possible that there is here food for a project in comparative Archaeology.
The African ones.
Some of the Portuguese ones.
Meanwhile 70 sites from Mali and Algeria have been mapped. Kmz file attached here:
ReplyDeletehttps://googleearthcommunity.proboards.com/post/37146/thread
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Also I have infos about similar structures in W.Africa and Morocco...
... Which are on the half way to Portugal. (!) (;
G aka syzygy