TO27CSv1.GSB
Derived through NAD83(CSRS)v3 but within accuracy of transformation may be assumed to apply to any version. For Ontario excluding Toronto use NAD27 to NAD83(CSRS) (5) (CT code 9107). Previously available from Land Information Ontario as TOR27CSv1.GSB.
Natural Resources Canada (NRCan), https://natural-resources.canada.ca
2023-11-19
Geodesy.
See CRS code 4267 for recommended coordinate axis representation for the human interface.
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: dec deg