Isopachs and structure contours, Quirke Lake - Elliot Lake, Blind River area, Algoma District, Ontario [cartographic material] / geological data compiled by S.M. Roscoe.
Includes cross section (on separate sheet) and index map. "To accompany Topical Report No. 4." "Approximate magnetic declination, 5⁰54' West."
- Geological Survey of Canada
- Held by
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