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★ UFO: US (II) by US State

ARIZONA: Ancient Aliens TV -  

 

 

Gateways to other dimensions.  Hidden dwellings.  Secret vaults of knowledge.  Since the earliest times caves have been a source of great mystery.  Imagine if the darkest recesses of our planet were hiding ancient secrets.  What if within their depths there could be found evidence of extraterrestrial visitors?  Ancient Aliens s9e1: Forbidden Caves

 

Grand Canyon: A small cave covered with artwork ... Some refer to it as the Shaman Panel.  ibid.