Draft tube and ceiling supports in the City Tunnel (c. 1870s)
MILL
RUINS PARK: WEEK 5
Excavations were suspended this week during evaluation of suspected
soil contamination.
The bulkhead blocking the City Tunnel was removed, allowing easier
access to this historic feature.
Draft tube and ceiling supports in the City Tunnel (c. 1870s)
All photographs copyright 2000 Archaeology Department, Minnesota Historical
Society
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