While flying over to Milk Hill to video The Galaxy on Aug 14th,
I found these two little formations (everything seems small now
that we've had the Galaxy!). I'm sure the one with all the thin
arcs and lines is based on a diagram that's in Manly P. Hall's
Encyclopedia of Magic -- but I can't find my copy of that
masterwork. The circle is below Huish Hill (SU 149-636).

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The other, little more than a tramline wide, is below Draycott
hill (SU 132-634).