Comments by "Jorge O" (@jorgeo4483) on "Pre-Historic Mega Structure Discovered in Montana, USA - Sage Wall" video.

  1. It is really not very common to find the entire natural bed of an ancient river that dried quickly, cracking and after folding the softer strata of the soil, it was left in that position. Maybe it evaporated after a Yellowstone eruption or a meteorite fall.
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