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James (not verified) , Thu, 12/26/2024 - 13:37
I live near a military base and am quite familiar with the sound of artillery. I used to live near a rail yard and am quite familiar with the sounds of trains. I grew up in the sixties, not far from Edwards AFB, so I know what sonic booms sound like.

While working near Sutter Creek, California, I heard booms that sounded like artillery (not trains, not planes, and no geologic source that I could conceive), but there are no bases near the area. The locals call it the Foothill Boom. The prevailing explanation is that the sound from the military destroying munitions in the Nevada desert at Hawthorne, is being conducted through the rock of the Sierra batholith. I don't buy it, and it certainly doesn't explain what Lewis, Clark, their men, nor the Indians heard. I don't believe that these booms are supernatural in origin, but I think that there is an, as yet undiscovered, natural source.
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