http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Depths shown by contours and gradient tints.
"Base prepared by Geological Survey of Canada."
Lambert conformal proj., standard parallels 49₋p0₋sN and 77₋p0₋sN, modified polyconic proj., north of latitude 80₋p0₋s