I am trying to georeference a mine plan, but it uses a custom CRS based on the following:

enter image description here

I gather I just need to rotate the OSGB grid system by 25 17'59" ?

is this just a case of modifying the default OSBG WKT somehow?

heres what a rough layer looks like ( bold line OSGB 50m grid )

enter image description here

  • 1
    Or georefernce to the OS grid lines the orange ones?
    – Ian Turton
    Jan 14 at 17:51
  • The faint ones are the mine grid from the image, the bold ones are just ones I have turned on in qgis to show the rotation required. Jan 14 at 18:29


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