(Civilization Cycle #545) Prehistoric Mining Sites Discovered North of Richat Structure in Mauritania

David Stig Hansen is taking his 4th trip to the Richet Structure in Mauritania, but heading to the ancient coastline to the North of the structure where he believes prehistoric mining and ritual sites are located. This journey is to explore several anomalies.  ☕ Support Civilization Cycle Podcast Buy Us a Double Espresso 🎙️ Civilization Cycle Podcast NEWSLETTER Sign Up ☀️ DAVID DUBYNE | ADAPT 2030 (PATREON) ☀️ DAVID DUBYNE | ADAPT 2030 (SUBSCRIBESTAR) 🌿 True Leaf Market Heirloom and Organic Seeds 🍅 Free Sustainability Course from The Grow Network