----- Original Message -----
From: "Michael Shaw" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, November 16, 2004 3:07 PM
Subject: mining terms
Is 'Invert' a correct term in mining circles for the bottom of the water
course level of a drainage adit?
Mike Shaw
Another term for a water channel in a drainage level is a "grip".
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