North (approximate)

Scale of feet
“000 in Tee 52

e ox

Geological Sur vey, Canada.

Tigure 3. Magnetite deposit, Tron Duke claims, Louise island, Queen Charlotte islands, B.C.
Magnetite exposures shown in solid black; magnetite in tunnel by_ruling; and altered

. porphyrite by crosses. Contour interval, 20 feet.