RE: Horwood 1937 "Geology at the Darkwater Mine" There are 7 sections in this large document
In section VI is the "Geology at the Darkwater Mine". by Horwood. ARV46, Part VI, 1937, Pages 26-35
https://www.geologyontario.mndmf.gov.on.ca/mndmfiles/pub/data/imaging/ARV46/ARV46.pdf
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