Date: Fri Oct 13 11:05:00 2000
Posted By: Dave Clark, Staff, Chemical and Environmental Technologies, Battelle
Area of science: Earth Sciences
I spoke with geology department staff at Lakehead University, Thunder Bay,
Ontario (www.lakeheadu.ca). They said that the hills about which you
asked are mesas with a basalt capstone protecting a shale base. All the
other hills in the area are just "normal" eroded gramite.
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