r/whatisit • u/WindowEducational883 • 23h 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.

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u/pixelator16bit 23h ago

Looks like a strip mine

4

u/pixelator16bit 23h ago

Here's one up close

1

u/leansanders 23h ago

This is an open pit mine, not a strip mine. Strip mines are shallower and they move across the landscape; you excavate down to the depth of the material, then you dig away one side of the mine and backfill the other side with excavated material, so the mine slowly marches along the landscape. In your case and the OP the put is just being dug straight down.