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Amy built the frame for the box with materials we had on hand.	Here's the box with its insulation board, covered on 5 sides with hardware cloth. Only the top is open. This prevents critters from digging their way inside.
Next we cut up tarps that we had on hand and lined the inside of the box with them using staple guns	This is more of the same.
One more shot of that staple gun in action.	Here's the box in its final resting place. It is ready to be filled with the bio-carbon materials we mixed up earlier.