You doing some investigations regarding collieries around Eglingham? Have you come across the 1930 Alnwick geology memoir? I can copy the Eglingham section out and put it in here for reference.
Those pits were working the Scremerston coal group. An early 'Eglingham Colliery' gets a mention, but not much, operating 1760?, location now unknown?? (better check the bottom of your garden?
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