ON76CSv1.GSB
Derived through NAD83(CSRS)v3 but within accuracy of transformation may be assumed to apply to any version.
Land Information Ontario via ISO Geodetic Register.
2019-07-15
Geodesy.
See CRS code 4608 for recommended coordinate axis representation for the human interface.
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: dec deg