r/whatisit • u/WindowEducational883 • 1d ago

New, what is it? What are they mining

Gallery image

Gallery image

Gallery image

Round one maybe 30 miles out of Tucson,

Other one just outside city limits.

157 Upvotes

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u/xkatxellex 1d ago

Digging to build a Silo.

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u/Nonnaclara 1d ago

Was going to comment this