Geology Reference
In-Depth Information
F
IG
. 7.30
(
a
) Part of the limestone circle at the Spaceguard Observatory,
Knighton, Powys, Wales. (
b
) Taurus stone at Spaceguard Observatory (Pho-
tos by Linda Lunan, Sep 2011). (
c
) Princess Diana stone at Spaceguard
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