How do you verify and validate ancient maps (or any of this generally)?

You go out into the field; you see the world as it is, you experience it, you gain Gnosis. This is what I've been thinking about since I began my research of alternative history. How would a "living God" have seen this world?
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(Don't worry, I'm not a Zecharia Sitchin proponent, Tesla's Aether model is far more convincing.)
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Airships, Aircraft, Aeros. Whatever the nomenclature you prefer, you need the capabilities of...

The Sonora Aero Club