>David Johnston has put forward the theory that in non limestone areas
limestone rocks in the glacial till were mined/quarried/hushed
Graham - it's not a theory, there are plenty of examples of all three in
the area between Bingley and Burnley - usually taken from moraines. So
it depended on what geology the glacier(s) had passed over, as opposed
to what was under the immediate area.
Mike
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