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The Evans-Mumbower Mill
We used ground penetrating radar
at the mill also. The scan was first done at the front of the mill and
after that was completed, I asked that a scan be done on the back of the
mill, towards the Wissahickon Creek, to see if anything could be found
where I had seen lines. When the report finally came in, there was only
a short shadow found, and it was not straight as my rod had indicated.
As archaeology site leader, the following year, I began a excavation
along the lines that I had found. At about 36 inches below the ground
level we uncovered the rough top of a tunnel.

The Buried Tunnel of the Tailrace
We continued along its path until
we found the opening of a tunnel 7 feet wide and 3.5 feet high. We then
went straight down my dowsing lines to a bridge over the creek and
excavated another hole by the wall of the bridge. We again found the
top of the tunnel 5.5 feet under ground and going underneath the
bridge. Three years later we followed the lines on the other side of
the bridge until we ended at the side of the old creek bed that is no
longer followed.
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