🇸🇪 Sweden · Submerged site
Baltic Anomaly – Gulf of Bothnia UFO Sonar Pseudo-Target
Precambrian natural (pseudo-claim: Pleistocene Atlantis) · Natural / Pseudoarchaeology (claimed Atlantis / Nazi)
2011 Ocean X 60 m circle at −87 m in Bothnia claimed as UFO/Atlantis — ROV sampling proves Precambrian sandstone with glacial striations and pluck scar, not cut city.