Tractor-mounted auger gang drilling attachment - GIF

Tractor-mounted auger gang drilling attachment.

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Previously:

Auger drilling through rock - GIF
Auger forming machine - GIF
Digging a shallow well using a hand auger - GIF
Fabricating augers - GIF
PTO auger - GIF
Riding an ice auger - GIF

That is darn dry soil, and deep. Does not have a black color, that to me is rich loam, and it would be wet, not clayish, and 3 foot deep to the clay below. As you need a clay base to keep surface water from making it straight to the aquifer.
I want to see them operate that machine in a clayish saturated wet mix to that depth. Should be entertaining to see how big a tractor is needed to pull the little one out.