I like the how, too-started watching it when the first episode/first season aired...
Same.
I hoping the electro-magnetic phenomenon of “earth lights” comes into play.
Every time they dig” something happens” which may indicate some kind friction or possibly even sonic vibrational thing is occurring which manifests itself as light emissions.
I’ve been reading books about so called “earth magic” since the 70s and those theories predate everything postulated on SR.
Imagine what could manifest if extraterrestrial rare elements, possibly even unknown elements were involved, vis a vis an incredibly ancient impact object from who knows where or when.
Plus Utah is known for its stunning and sometimes bizarre sandstone and that brings Piezoelectricity into the equation.
I want that aspect explored as well.
/sorry to keep yapping on. this is kinda my thing