For some time, I have been trying to georeference an old map of Quebec. On photo 1, there is the indication on the projection. Map from 1936-1937, with small corrections in 1946
I use the coordinate grid present on the map (Photo 2)
I tried many projections, many coordinate systems and in the best case I get an offset of several hundred meters on my georeferencing
I tried with :
- NAD27(CGQ77)/UTM zone 19N
- NAD27/ UTM zone 19N
- WGS84/ UTM zone 19N but without conclusive results
I must have missed a step, but I don't know which one.
Which projection and which coordinate system would you use to get the best result?