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Datum: North American Datum 1927 (CGQ77)
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Geodetic Datum used in Canada - Quebec

North American Datum 1927 (CGQ77) is a geodetic datum first defined in 1977 and is suitable for use in Canada - Quebec.. North American Datum 1927 (CGQ77) references the Clarke 1866 ellipsoid and the Greenwich prime meridian. North American Datum 1927 (CGQ77) origin is Fundamental point: Meade's Ranch. Latitude: 3913'26.686"N, longitude: 9832'30.506"W (of Greenwich). North American Datum 1927 (CGQ77) is a geodetic datum for Geodetic survey, cadastre, topographic mapping, engineering survey. It was defined by information from Geodetic Service of Quebec. Contact alain.bernard@mrn.gouv.qc.ca NAD27 (CGQ77) used in Quebec for all maps at scale 1/20 000 and larger; generally for maps issued by the Quebec cartography office whose reference system is CGQ77.

North American Datum 1927 (CGQ77)Open
Datum Details
Datum Name:North American Datum 1927 (CGQ77)
Code:6609
Area Of Use: Canada - QuebecOpen
Scope:Geodetic survey, cadastre, topographic mapping, engineering survey.
Type:geodetic
Realization Epoch:1977
Origin:Fundamental point: Meade's Ranch. Latitude: 3913'26.686"N, longitude: 9832'30.506"W (of Greenwich).
Ellipsoid:Clarke 1866Open
Prime Meridian:GreenwichOpen
Applicable CRS-s: The following CRS are based on this datum:
[NAD27(CGQ77)]