www.geologyontario.mndmf.gov.on.ca
, Index to Ontario Geological Survey (OGS) Preliminary map series (P series) digital images at Ontario Ministry of Northern Development and Mines
Scale 1:15,840 (W 91°45ʹ00ʺ--W 91°30ʹ00ʺ/N 48°52ʹ30ʺ--N 48°45ʹ00ʺ).
Note
Includes index map, data location map, and sources of information. "NTS reference: 52 B/13E." "ODM-GSC Aeromagnetic map: 1133G." "ODM Geological compilation series map: 2065." "Thunder Bay data series." "Issued 1981."